diff --git a/__test__/components/Calendar.test.tsx b/__test__/components/Calendar.test.tsx
index 29596e8..75e68ec 100644
--- a/__test__/components/Calendar.test.tsx
+++ b/__test__/components/Calendar.test.tsx
@@ -76,7 +76,7 @@ describe("CalendarSelection", () => {
           delegated: true,
           id: "user2/cal1",
           color: { light: "#FF0000", dark: "#000" },
-          owner: { emails: ["alice@example.com"] },
+          owner: { emails: ["alice@example.com"], lastname: "alice" },
           events: {
             event1: {
               id: "event1",
@@ -107,7 +107,7 @@ describe("CalendarSelection", () => {
           name: "Calendar shared",
           id: "user3/cal1",
           color: { light: "#FF0000", dark: "#000" },
-          owner: { emails: ["alice@example.com"] },
+          owner: { emails: ["alice@example.com"], lastname: "alice" },
           events: {
             event1: {
               id: "event1",
@@ -709,10 +709,10 @@ describe("calendar Availability search", () => {
       );
 
       const selectedCalls = spy.mock.calls.filter(
-        (call: { calId: string }[]) => call[0].calId === "user1/cal1"
+        (call) => call[0].calId === "user1/cal1"
       );
-      const hiddenCalls = spy.mock.calls.filter(
-        (call: { calId: string }[]) =>
+      spy.mock.calls.filter(
+        (call) =>
           call[0].calId === "user1/cal2" || call[0].calId === "user1/cal3"
       );
 
@@ -745,13 +745,12 @@ describe("calendar Availability search", () => {
       );
 
       const callsForCal1 = spy.mock.calls.filter(
-        (call: { calId: string }[]) => call[0].calId === "user1/cal1"
+        (call) => call[0].calId === "user1/cal1"
       );
 
       const uniqueRanges = new Set(
         callsForCal1.map(
-          (call: { match: { end: string; start: string } }[]) =>
-            `${call[0].match.start}_${call[0].match.end}`
+          (call) => `${call[0].match.start}_${call[0].match.end}`
         )
       );
 
@@ -762,8 +761,8 @@ describe("calendar Availability search", () => {
       const stateWithUndefinedCalendars = {
         ...preloadedState,
         calendars: {
-          list: undefined as any,
-          templist: undefined as any,
+          list: undefined,
+          templist: undefined,
           pending: false,
         },
       };
@@ -783,7 +782,7 @@ describe("calendar Availability search", () => {
         ...preloadedState,
         calendars: {
           ...preloadedState.calendars,
-          templist: undefined as any,
+          templist: undefined,
         },
       };
 
diff --git a/__test__/components/CalendarColors.test.tsx b/__test__/components/CalendarColors.test.tsx
index 73843b2..45b6c25 100644
--- a/__test__/components/CalendarColors.test.tsx
+++ b/__test__/components/CalendarColors.test.tsx
@@ -73,7 +73,7 @@ describe("CalendarSearch", () => {
 
     await act(async () => {
       renderWithProviders(
-        <CalendarSearch anchorEl={null} open={true} onClose={mockOnClose} />,
+        <CalendarSearch open={true} onClose={mockOnClose} />,
         preloadedState
       );
     });
@@ -96,7 +96,7 @@ describe("CalendarSearch", () => {
     });
 
     await waitFor(() => {
-      expect(screen.getByText("Test Calendar")).toBeInTheDocument();
+      expect(screen.getByText(/Test Calendar/i)).toBeInTheDocument();
       expect(screen.getByText("user@example.com")).toBeInTheDocument();
     });
   });
@@ -117,7 +117,7 @@ describe("CalendarSearch", () => {
 
     await act(async () => {
       renderWithProviders(
-        <CalendarSearch anchorEl={null} open={true} onClose={mockOnClose} />,
+        <CalendarSearch open={true} onClose={mockOnClose} />,
         preloadedState
       );
     });
@@ -133,7 +133,7 @@ describe("CalendarSearch", () => {
     });
 
     await waitFor(() => {
-      expect(screen.getByText("Test Calendar")).toBeInTheDocument();
+      expect(screen.getByText(/Test Calendar/i)).toBeInTheDocument();
     });
 
     const addButton = screen.getByRole("button", { name: /add/i });
@@ -170,7 +170,7 @@ describe("CalendarSearch", () => {
 
     await act(async () => {
       renderWithProviders(
-        <CalendarSearch anchorEl={null} open={true} onClose={mockOnClose} />,
+        <CalendarSearch open={true} onClose={mockOnClose} />,
         preloadedState
       );
     });
@@ -205,7 +205,7 @@ describe("CalendarSearch", () => {
 
     await act(async () => {
       renderWithProviders(
-        <CalendarSearch anchorEl={null} open={true} onClose={mockOnClose} />,
+        <CalendarSearch open={true} onClose={mockOnClose} />,
         preloadedState
       );
     });
@@ -237,7 +237,7 @@ describe("CalendarSearch", () => {
 
     await act(async () => {
       renderWithProviders(
-        <CalendarSearch anchorEl={null} open={true} onClose={mockOnClose} />,
+        <CalendarSearch open={true} onClose={mockOnClose} />,
         preloadedState
       );
     });
@@ -253,7 +253,7 @@ describe("CalendarSearch", () => {
     });
 
     await waitFor(() => {
-      expect(screen.getByText("Test Calendar")).toBeInTheDocument();
+      expect(screen.getByText(/Test Calendar/i)).toBeInTheDocument();
     });
 
     // ColorPicker would need to be interacted with based on its implementation
@@ -286,7 +286,7 @@ describe("CalendarSearch", () => {
 
     await act(async () => {
       renderWithProviders(
-        <CalendarSearch anchorEl={null} open={true} onClose={mockOnClose} />,
+        <CalendarSearch open={true} onClose={mockOnClose} />,
         preloadedState
       );
     });
@@ -302,8 +302,8 @@ describe("CalendarSearch", () => {
     });
 
     await waitFor(() => {
-      expect(screen.getByText("Test Calendar")).toBeInTheDocument();
-      expect(screen.getByText("Second Calendar")).toBeInTheDocument();
+      expect(screen.getByText(/Test Calendar/i)).toBeInTheDocument();
+      expect(screen.getByText(/Second Calendar/i)).toBeInTheDocument();
     });
   });
 
@@ -316,7 +316,7 @@ describe("CalendarSearch", () => {
 
     await act(async () => {
       renderWithProviders(
-        <CalendarSearch anchorEl={null} open={true} onClose={mockOnClose} />,
+        <CalendarSearch open={true} onClose={mockOnClose} />,
         preloadedState
       );
     });
@@ -351,7 +351,7 @@ describe("CalendarSearch", () => {
 
     await act(async () => {
       renderWithProviders(
-        <CalendarSearch anchorEl={null} open={true} onClose={mockOnClose} />,
+        <CalendarSearch open={true} onClose={mockOnClose} />,
         preloadedState
       );
     });
@@ -378,7 +378,7 @@ describe("CalendarSearch", () => {
     });
 
     await waitFor(() => {
-      expect(screen.getByText("Test Calendar")).toBeInTheDocument();
+      expect(screen.getByText(/Test Calendar/i)).toBeInTheDocument();
       expect(screen.getByText("user@example.com")).toBeInTheDocument();
     });
 
diff --git a/__test__/components/CalendarSelection.test.tsx b/__test__/components/CalendarSelection.test.tsx
index 2e94896..2d216c1 100644
--- a/__test__/components/CalendarSelection.test.tsx
+++ b/__test__/components/CalendarSelection.test.tsx
@@ -24,20 +24,28 @@ describe("CalendarSelection", () => {
       name: "Calendar personal",
       id: "user1/cal1",
       color: "#FF0000",
-      owner: { emails: ["alice@example.com"] },
+      owner: { emails: ["alice@example.com"], lastname: "alice" },
     },
     "user2/cal1": {
       name: "Calendar delegated",
       delegated: true,
       id: "user2/cal1",
       color: "#00FF00",
-      owner: { emails: ["bob@example.com"] },
+      owner: {
+        firstname: "Bob",
+        lastname: "Builder",
+        emails: ["bob@example.com"],
+      },
     },
     "user3/cal1": {
       name: "Calendar shared",
       id: "user3/cal1",
       color: "#0000FF",
-      owner: { emails: ["charlie@example.com"] },
+      owner: {
+        firstname: "Charlie",
+        lastname: "Chaplin",
+        emails: ["charlie@example.com"],
+      },
     },
   };
   beforeAll(() => {
@@ -273,4 +281,18 @@ describe("CalendarSelection", () => {
     fireEvent.click(delegatedAccordionSummary!);
     expect(delegatedAccordionSummary).toHaveAttribute("aria-expanded", "false");
   });
+
+  it("renders owner name caption for non-personal, non-default calendars", () => {
+    renderWithProviders(
+      <CalendarSelection
+        selectedCalendars={[]}
+        setSelectedCalendars={jest.fn()}
+      />,
+      { user: baseUser, calendars: { list: calendarsMock, pending: false } }
+    );
+    expect(screen.getByText("Bob Builder")).toBeInTheDocument();
+    expect(screen.getByText("Charlie Chaplin")).toBeInTheDocument();
+    // personal calendar should NOT show a caption
+    expect(screen.queryByText("alice")).not.toBeInTheDocument();
+  });
 });
diff --git a/__test__/features/Calendars/CalendarAPI.test.tsx b/__test__/features/Calendars/CalendarAPI.test.tsx
index 8384793..21bdb22 100644
--- a/__test__/features/Calendars/CalendarAPI.test.tsx
+++ b/__test__/features/Calendars/CalendarAPI.test.tsx
@@ -114,7 +114,7 @@ describe("Calendar API", () => {
     });
   });
 
-  it("get secret link ", async () => {
+  it("get secret link without reset", async () => {
     const calLink = "/calendars/calId.json";
     (api.get as jest.Mock).mockReturnValue({
       json: jest.fn().mockResolvedValue("link"),
@@ -131,7 +131,7 @@ describe("Calendar API", () => {
       }
     );
   });
-  it("get secret link ", async () => {
+  it("get secret link with reset", async () => {
     const calLink = "/calendars/calId.json";
     (api.get as jest.Mock).mockReturnValue({
       json: jest.fn().mockResolvedValue("link"),
@@ -162,7 +162,7 @@ describe("Calendar API", () => {
     });
   });
 
-  it("When adding a sharedCal with #default as a name a new name is sent to the back", async () => {
+  it("When adding a sharedCal with #default #default is preserved", async () => {
     const mockApiPost = jest.spyOn(api, "post");
 
     const calData = {
@@ -192,12 +192,11 @@ describe("Calendar API", () => {
     expect(mockApiPost).toHaveBeenCalledWith(
       "dav/calendars/currentUserId.json",
       expect.objectContaining({
-        body: expect.stringContaining('"dav:name":"John Doe\'s calendar"'),
+        body: expect.stringContaining('"dav:name":"#default"'),
       })
     );
 
     const callBody = JSON.parse(String(mockApiPost.mock.calls[0][1]?.body));
-    expect(callBody["dav:name"]).toBe("John Doe's calendar");
-    expect(callBody["dav:name"]).not.toBe("#default");
+    expect(callBody["dav:name"]).toBe("#default");
   });
 });
diff --git a/src/components/Calendar/CalendarColorPicker.tsx b/src/components/Calendar/CalendarColorPicker.tsx
index c856fd2..eba4f83 100644
--- a/src/components/Calendar/CalendarColorPicker.tsx
+++ b/src/components/Calendar/CalendarColorPicker.tsx
@@ -11,7 +11,8 @@ import {
 import { useState, useEffect } from "react";
 import { HexColorPicker } from "react-colorful";
 import { useI18n } from "twake-i18n";
-import { defaultColors, getAccessiblePair } from "./utils/calendarColorsUtils";
+import { getAccessiblePair } from "./utils/calendarColorsUtils";
+import { defaultColors } from "@/utils/defaultColors";
 
 export function ColorPicker({
   selectedColor,
diff --git a/src/components/Calendar/CalendarModal.tsx b/src/components/Calendar/CalendarModal.tsx
index 195cd8b..5686f38 100644
--- a/src/components/Calendar/CalendarModal.tsx
+++ b/src/components/Calendar/CalendarModal.tsx
@@ -14,7 +14,7 @@ import { ResponsiveDialog } from "../Dialog";
 import { AccessTab } from "./AccessTab";
 import { ImportTab } from "./ImportTab";
 import { SettingsTab } from "./SettingsTab";
-import { defaultColors } from "./utils/calendarColorsUtils";
+import { defaultColors } from "@/utils/defaultColors";
 
 function CalendarPopover({
   open,
diff --git a/src/components/Calendar/CalendarName.tsx b/src/components/Calendar/CalendarName.tsx
index 70006e9..8c81105 100644
--- a/src/components/Calendar/CalendarName.tsx
+++ b/src/components/Calendar/CalendarName.tsx
@@ -1,17 +1,42 @@
 import { Calendar } from "@/features/Calendars/CalendarTypes";
 import { Box, Typography } from "@linagora/twake-mui";
 import SquareRoundedIcon from "@mui/icons-material/SquareRounded";
+import { defaultColors } from "@/utils/defaultColors";
+import { makeDisplayName } from "@/utils/makeDisplayName";
+import { OwnerCaption } from "./OwnerCaption";
+import { useAppSelector } from "@/app/hooks";
+
 export function CalendarName({ calendar }: { calendar: Calendar }) {
+  const userData = useAppSelector((state) => state.user.userData);
+  const showCaption =
+    calendar.name !== "#default" &&
+    userData.openpaasId !== calendar.id.split("/")[0];
+
   return (
-    <Box style={{ display: "flex", flexDirection: "row", gap: 8 }}>
+    <Box
+      style={{
+        display: "flex",
+        flexDirection: "row",
+        gap: 8,
+        alignItems: "center",
+      }}
+    >
       <SquareRoundedIcon
         style={{
-          color: calendar.color?.light ?? "#3788D8",
+          color: calendar.color?.light ?? defaultColors[0].light,
           width: 24,
           height: 24,
         }}
       />
-      <Typography sx={{ wordBreak: "break-word" }}>{calendar.name}</Typography>
+      <Box style={{ display: "flex", flexDirection: "column" }}>
+        <Typography sx={{ wordBreak: "break-word" }}>
+          {calendar.name}
+        </Typography>
+        <OwnerCaption
+          showCaption={showCaption}
+          ownerDisplayName={makeDisplayName(calendar) ?? ""}
+        />
+      </Box>
     </Box>
   );
 }
diff --git a/src/components/Calendar/CalendarSearch.tsx b/src/components/Calendar/CalendarSearch.tsx
index d543e5e..11045ad 100644
--- a/src/components/Calendar/CalendarSearch.tsx
+++ b/src/components/Calendar/CalendarSearch.tsx
@@ -20,7 +20,8 @@ import { PeopleSearch, User } from "../Attendees/PeopleSearch";
 import { ResponsiveDialog } from "../Dialog";
 import { stringAvatar } from "../Event/utils/eventUtils";
 import { ColorPicker } from "./CalendarColorPicker";
-import { defaultColors, getAccessiblePair } from "./utils/calendarColorsUtils";
+import { getAccessiblePair } from "./utils/calendarColorsUtils";
+import { defaultColors } from "@/utils/defaultColors";
 
 interface CalendarWithOwner {
   cal: CalendarData;
diff --git a/src/components/Calendar/CalendarSelection.tsx b/src/components/Calendar/CalendarSelection.tsx
index 1eb6243..9174897 100644
--- a/src/components/Calendar/CalendarSelection.tsx
+++ b/src/components/Calendar/CalendarSelection.tsx
@@ -2,6 +2,7 @@ import { useAppDispatch, useAppSelector } from "@/app/hooks";
 import { Calendar } from "@/features/Calendars/CalendarTypes";
 import { removeCalendarAsync } from "@/features/Calendars/services";
 import { extractEventBaseUuid } from "@/utils/extractEventBaseUuid";
+import { makeDisplayName } from "@/utils/makeDisplayName";
 import { renameDefault } from "@/utils/renameDefault";
 import { trimLongTextWithoutSpace } from "@/utils/textUtils";
 import {
@@ -23,6 +24,7 @@ import { useI18n } from "twake-i18n";
 import CalendarPopover from "./CalendarModal";
 import CalendarSearch from "./CalendarSearch";
 import { DeleteCalendarDialog } from "./DeleteCalendarDialog";
+import { OwnerCaption } from "./OwnerCaption";
 
 function CalendarAccordion({
   title,
@@ -260,6 +262,20 @@ function CalendarSelector({
     () => trimLongTextWithoutSpace(calendars[id].name),
     [calendars, id]
   );
+
+  const ownerDisplayName = useMemo(
+    () => makeDisplayName(calendars[id]),
+    [calendars, id]
+  );
+
+  const displayName = useMemo(
+    () => renameDefault(trimmedName, ownerDisplayName ?? "", t, isPersonal),
+    [trimmedName, ownerDisplayName, t, isPersonal]
+  );
+
+  const showCaption =
+    !isPersonal && trimmedName !== "#default" && ownerDisplayName != null;
+
   return (
     <>
       <ListItem
@@ -291,16 +307,30 @@ function CalendarSelector({
             size="small"
             checked={selectedCalendars.includes(id)}
             onChange={() => handleCalendarToggle(id)}
+            inputProps={{ "aria-label": displayName }}
           />
-          <span
+          <div
             style={{
+              display: "flex",
+              flexDirection: "column",
               overflow: "hidden",
-              textOverflow: "ellipsis",
-              wordBreak: "break-word",
+              padding: showCaption ? "6px" : undefined,
             }}
           >
-            {renameDefault(trimmedName, calendars[id].owner, t, isPersonal)}
-          </span>
+            <span
+              style={{
+                overflow: "hidden",
+                textOverflow: "ellipsis",
+                wordBreak: "break-word",
+              }}
+            >
+              {displayName}
+            </span>
+            <OwnerCaption
+              showCaption={showCaption}
+              ownerDisplayName={ownerDisplayName ?? ""}
+            />
+          </div>
         </label>
         <IconButton className="MoreBtn" onClick={handleClick}>
           <MoreHorizIcon />
diff --git a/src/components/Calendar/OwnerCaption.tsx b/src/components/Calendar/OwnerCaption.tsx
new file mode 100644
index 0000000..fb2e67b
--- /dev/null
+++ b/src/components/Calendar/OwnerCaption.tsx
@@ -0,0 +1,23 @@
+import { Typography } from "@linagora/twake-mui";
+
+export function OwnerCaption({
+  showCaption,
+  ownerDisplayName,
+}: {
+  showCaption: boolean;
+  ownerDisplayName: string;
+}) {
+  return (
+    <Typography
+      variant="caption"
+      color="text.secondary"
+      style={{
+        overflow: "hidden",
+        textOverflow: "ellipsis",
+        wordBreak: "break-word",
+      }}
+    >
+      {showCaption && ownerDisplayName}
+    </Typography>
+  );
+}
diff --git a/src/components/Calendar/utils/calendarColorsUtils.tsx b/src/components/Calendar/utils/calendarColorsUtils.tsx
index 978701c..9ca27cd 100644
--- a/src/components/Calendar/utils/calendarColorsUtils.tsx
+++ b/src/components/Calendar/utils/calendarColorsUtils.tsx
@@ -2,6 +2,7 @@ import { AppDispatch } from "@/app/store";
 import { updateCalColor } from "@/features/Calendars/CalendarSlice";
 import { Calendar } from "@/features/Calendars/CalendarTypes";
 import { darken, getContrastRatio, lighten, Theme } from "@linagora/twake-mui";
+import { defaultColors } from "@/utils/defaultColors";
 
 export function updateDarkColor(
   calendars: Record<string, Calendar>,
@@ -53,10 +54,3 @@ export function getAccessiblePair(baseColor: string, theme: Theme): string {
 
   return theme.palette.getContrastText(baseColor);
 }
-
-export const defaultColors = [
-  { light: "#D0ECDA", dark: "#329655" },
-  { light: "#FAE3CE", dark: "#E15300" },
-  { light: "#F5CFD0", dark: "#BE0103" },
-  { light: "#AFCBEF", dark: "#0654B1" },
-];
diff --git a/src/components/Event/EventFormFields.tsx b/src/components/Event/EventFormFields.tsx
index e60b010..f4f59d5 100644
--- a/src/components/Event/EventFormFields.tsx
+++ b/src/components/Event/EventFormFields.tsx
@@ -2,6 +2,8 @@ import { Calendar } from "@/features/Calendars/CalendarTypes";
 import { RepetitionObject } from "@/features/Events/EventsTypes";
 import { userAttendee } from "@/features/User/models/attendee";
 import iconCamera from "@/static/images/icon-camera.svg";
+import { defaultColors } from "@/utils/defaultColors";
+import { makeDisplayName } from "@/utils/makeDisplayName";
 import {
   addVideoConferenceToDescription,
   generateMeetingLink,
@@ -35,6 +37,7 @@ import React from "react";
 import { useI18n } from "twake-i18n";
 import AttendeeSelector from "../Attendees/AttendeeSearch";
 import { CalendarItemList } from "../Calendar/CalendarItemList";
+import { OwnerCaption } from "../Calendar/OwnerCaption";
 import { SnackbarAlert } from "../Loading/SnackBarAlert";
 import { TimezoneAutocomplete } from "../Timezone/TimezoneAutocomplete";
 import { AddDescButton } from "./AddDescButton";
@@ -775,7 +778,7 @@ export default function EventFormFields({
                 sx={{
                   color:
                     userPersonalCalendars.find((cal) => cal.id === calendarid)
-                      ?.color?.light ?? "#3788D8",
+                      ?.color?.light ?? defaultColors[0].light,
                   width: 24,
                   height: 24,
                 }}
@@ -783,8 +786,34 @@ export default function EventFormFields({
             }
             onClick={() => setHasClickedCalendarSection(true)}
           >
-            {userPersonalCalendars.find((cal) => cal.id === calendarid)?.name ||
-              t("event.form.calendar")}
+            {userPersonalCalendars.find((cal) => cal.id === calendarid)
+              ?.name ? (
+              <Box style={{ display: "flex", flexDirection: "column" }}>
+                <Typography sx={{ wordBreak: "break-word" }}>
+                  {
+                    userPersonalCalendars.find((cal) => cal.id === calendarid)
+                      ?.name
+                  }
+                </Typography>
+                <OwnerCaption
+                  showCaption={
+                    delegatedCalendars.find((cal) => cal.id === calendarid) !==
+                      undefined &&
+                    userPersonalCalendars.find((cal) => cal.id === calendarid)
+                      ?.name !== "#default"
+                  }
+                  ownerDisplayName={
+                    makeDisplayName(
+                      userPersonalCalendars.find(
+                        (cal) => cal.id === calendarid
+                      ) ?? ({} as Calendar)
+                    ) ?? ""
+                  }
+                />
+              </Box>
+            ) : (
+              t("event.form.calendar")
+            )}
           </SectionPreviewRow>
         ) : (
           <FormControl fullWidth margin="dense" size="small">
diff --git a/src/features/Calendars/CalendarApi.ts b/src/features/Calendars/CalendarApi.ts
index e8dec88..ab69619 100644
--- a/src/features/Calendars/CalendarApi.ts
+++ b/src/features/Calendars/CalendarApi.ts
@@ -69,15 +69,10 @@ export async function addSharedCalendar(
     body: JSON.stringify({
       id: calId,
       ...cal.cal,
-      "dav:name":
-        cal.cal["dav:name"] === "#default"
-          ? (cal.owner?.displayName ?? "Unknown") + "'s calendar"
-          : cal.cal["dav:name"],
       "calendarserver:source": {
         acl: cal.cal.acl,
         calendarHomeId: cal.cal.id,
         color: cal.cal["apple:color"],
-
         description: cal.cal["caldav:description"],
         href: cal.cal._links.self.href,
         id: cal.cal.id,
diff --git a/src/features/Calendars/services/getCalendarDetailAsync.ts b/src/features/Calendars/services/getCalendarDetailAsync.ts
index 84c067f..ed685ac 100644
--- a/src/features/Calendars/services/getCalendarDetailAsync.ts
+++ b/src/features/Calendars/services/getCalendarDetailAsync.ts
@@ -8,7 +8,7 @@ import { createAsyncThunk } from "@reduxjs/toolkit";
 import { getCalendar } from "../CalendarApi";
 import { RejectedError } from "../types/RejectedError";
 import { extractCalendarEvents } from "../utils/extractCalendarEvents";
-import { defaultColors } from "@/components/Calendar/utils/calendarColorsUtils";
+import { defaultColors } from "@/utils/defaultColors";
 import { type RootState } from "@/app/store";
 
 export const getCalendarDetailAsync = createAsyncThunk<
diff --git a/src/features/Calendars/services/getCalendarsListAsync.ts b/src/features/Calendars/services/getCalendarsListAsync.ts
index ab08bfb..71b908a 100644
--- a/src/features/Calendars/services/getCalendarsListAsync.ts
+++ b/src/features/Calendars/services/getCalendarsListAsync.ts
@@ -1,4 +1,5 @@
 import { RootState } from "@/app/store";
+import { defaultColors } from "@/utils/defaultColors";
 import { OpenPaasUserData } from "@/features/User/type/OpenPaasUserData";
 import { getOpenPaasUser, getUserDetails } from "@/features/User/userAPI";
 import { formatReduxError } from "@/utils/errorUtils";
@@ -75,10 +76,12 @@ export const getCalendarsListAsync = createAsyncThunk<
           emails: [],
         };
 
-        const color = {
-          light: cal["apple:color"] ?? "#006BD8",
-          dark: "#FFF",
-        };
+        const color = cal["apple:color"]
+          ? {
+              light: cal["apple:color"],
+              dark: "#FFF",
+            }
+          : defaultColors[0];
         fetchedCalendars[id] = {
           id,
           name: cal["dav:name"] ?? "",
diff --git a/src/features/Calendars/utils/extractCalendarEvents.ts b/src/features/Calendars/utils/extractCalendarEvents.ts
index 5fedf56..3eb7df6 100644
--- a/src/features/Calendars/utils/extractCalendarEvents.ts
+++ b/src/features/Calendars/utils/extractCalendarEvents.ts
@@ -1,4 +1,4 @@
-import { defaultColors } from "@/components/Calendar/utils/calendarColorsUtils";
+import { defaultColors } from "@/utils/defaultColors";
 import { CalendarEvent } from "@/features/Events/EventsTypes";
 import { parseCalendarEvent } from "@/features/Events/eventUtils";
 import { CalDavItem } from "../api/types";
diff --git a/src/features/Search/SearchResultsPage.tsx b/src/features/Search/SearchResultsPage.tsx
index 318911a..022baca 100644
--- a/src/features/Search/SearchResultsPage.tsx
+++ b/src/features/Search/SearchResultsPage.tsx
@@ -1,5 +1,6 @@
 import { useAppDispatch, useAppSelector } from "@/app/hooks";
 import { AppDispatch } from "@/app/store";
+import { defaultColors } from "@/utils/defaultColors";
 import { browserDefaultTimeZone } from "@/utils/timezone";
 import {
   Box,
@@ -239,7 +240,7 @@ function ResultItem({
 
         <SquareRoundedIcon
           style={{
-            color: calendarColor ?? "#3788D8",
+            color: calendarColor ?? defaultColors[0].light,
             width: 24,
             height: 24,
             flexShrink: 0,
diff --git a/src/utils/defaultColors.tsx b/src/utils/defaultColors.tsx
new file mode 100644
index 0000000..56846e7
--- /dev/null
+++ b/src/utils/defaultColors.tsx
@@ -0,0 +1,6 @@
+export const defaultColors = [
+  { light: "#D0ECDA", dark: "#329655" },
+  { light: "#FAE3CE", dark: "#E15300" },
+  { light: "#F5CFD0", dark: "#BE0103" },
+  { light: "#AFCBEF", dark: "#0654B1" },
+];
diff --git a/src/utils/makeDisplayName.tsx b/src/utils/makeDisplayName.ts
similarity index 100%
rename from src/utils/makeDisplayName.tsx
rename to src/utils/makeDisplayName.ts
diff --git a/src/utils/renameDefault.ts b/src/utils/renameDefault.ts
index 84a7d99..fce6841 100644
--- a/src/utils/renameDefault.ts
+++ b/src/utils/renameDefault.ts
@@ -4,6 +4,9 @@ export function renameDefault(
   t: (key: string, params?: object) => string,
   isOwnCalendar?: boolean
 ) {
+  if (!ownerName) {
+    if (davName && davName !== "#default") return davName;
+  }
   if (!davName) {
     return t("calendar.defaultCalendarName", { name: ownerName });
   }