diff --git a/core/lib/presentation/extensions/color_extension.dart b/core/lib/presentation/extensions/color_extension.dart
index 6c1e4f997..1f00a5271 100644
--- a/core/lib/presentation/extensions/color_extension.dart
+++ b/core/lib/presentation/extensions/color_extension.dart
@@ -61,5 +61,14 @@ extension AppColor on Color {
   static const backgroundCountAttachment = Color(0x681C1C1C);
   static const bgStatusResultSearch = Color(0xFFF5F5F7);
   static const bgWordSearch = Color(0xFFD7D6FC);
+
+  static const mapGradientColor = [
+    [Color(0xFF21D4FD), Color(0xFFB721FF)],
+    [Color(0xFF43E97B), Color(0xFF38F9D7)],
+    [Color(0xFF11E6F0), Color(0xFF4FACFE)],
+    [Color(0xFFE88395), Color(0xFFEF9C8F)],
+    [Color(0xFF8DDAD5), Color(0xFF00CDAC)],
+    [Color(0xFFDE9AF5), Color(0xFFD670EE)],
+  ];
 }
 
diff --git a/core/lib/presentation/views/image/avatar_builder.dart b/core/lib/presentation/views/image/avatar_builder.dart
index b03cfdf5b..35cb7fd6e 100644
--- a/core/lib/presentation/views/image/avatar_builder.dart
+++ b/core/lib/presentation/views/image/avatar_builder.dart
@@ -10,21 +10,20 @@ class AvatarBuilder {
   double? _size;
   // String? _iconStatus;
   Color? _bgColor;
+  Color? _textColor;
   OnTapAvatarActionClick? _onTapAvatarActionClick;
+  List<Color>? _avatarColors;
 
-  AvatarBuilder key(Key key) {
+  void key(Key key) {
     _key = key;
-    return this;
   }
 
-  AvatarBuilder size(double size) {
+  void size(double size) {
     _size = size;
-    return this;
   }
 
-  AvatarBuilder text(String text) {
+  void text(String text) {
     _text = text;
-    return this;
   }
 
   // AvatarBuilder iconStatus(String iconStatus) {
@@ -32,14 +31,20 @@ class AvatarBuilder {
   //   return this;
   // }
 
-  AvatarBuilder backgroundColor(Color bgColor) {
+  void backgroundColor(Color bgColor) {
     _bgColor = bgColor;
-    return this;
   }
 
-  AvatarBuilder addOnTapActionClick(OnTapAvatarActionClick onTapAvatarActionClick) {
+  void textColor(Color textColor) {
+    _textColor = textColor;
+  }
+
+  void avatarColor(List<Color>? avatarColors) {
+    _avatarColors = avatarColors;
+  }
+
+  void addOnTapActionClick(OnTapAvatarActionClick onTapAvatarActionClick) {
     _onTapAvatarActionClick = onTapAvatarActionClick;
-    return this;
   }
 
   Widget build() {
@@ -61,11 +66,17 @@ class AvatarBuilder {
               alignment: Alignment.center,
               decoration: BoxDecoration(
                 borderRadius: BorderRadius.circular((_size ?? 40) / 2),
-                border: Border.all(color: Colors.white),
+                border: Border.all(color: Colors.transparent),
+                gradient: _avatarColors?.isNotEmpty == true
+                  ? LinearGradient(
+                      begin: Alignment.topCenter,
+                      end: Alignment.bottomCenter,
+                      colors: _avatarColors ?? [])
+                  : null,
                 color: _bgColor ?? AppColor.avatarColor),
               child: Text(
                 '${_text ?? ''}',
-                style: TextStyle(fontSize: 20, color: AppColor.avatarTextColor, fontWeight: FontWeight.w500))),
+                style: TextStyle(fontSize: 20, color: _textColor ?? AppColor.avatarTextColor, fontWeight: FontWeight.w500))),
             // if (_iconStatus != null && _iconStatus!.isNotEmpty)
             //   Align(
             //     child: SvgPicture.asset(_iconStatus!, width: 12, height: 12, fit: BoxFit.fill),
diff --git a/lib/features/email/presentation/widgets/sender_and_receiver_information_tile_builder.dart b/lib/features/email/presentation/widgets/sender_and_receiver_information_tile_builder.dart
index 29fbe866a..e8f501bae 100644
--- a/lib/features/email/presentation/widgets/sender_and_receiver_information_tile_builder.dart
+++ b/lib/features/email/presentation/widgets/sender_and_receiver_information_tile_builder.dart
@@ -45,9 +45,9 @@ class SenderAndReceiverInformationTileBuilder {
         child: ListTile(
           leading: Transform(
             transform: Matrix4.translationValues(-15.0, -8.0, 0.0),
-            child: AvatarBuilder()
-              .text('${_presentationEmail!.getAvatarText()}')
-              .size(40)
+            child: (AvatarBuilder()
+                ..text('${_presentationEmail!.getAvatarText()}')
+                ..size(40))
               // .iconStatus(_imagePaths.icOffline)
               .build()),
           title: Transform(
diff --git a/lib/features/mailbox/presentation/widgets/user_information_widget_builder.dart b/lib/features/mailbox/presentation/widgets/user_information_widget_builder.dart
index ea5e9b79e..fa6c6cdd6 100644
--- a/lib/features/mailbox/presentation/widgets/user_information_widget_builder.dart
+++ b/lib/features/mailbox/presentation/widgets/user_information_widget_builder.dart
@@ -38,9 +38,9 @@ class UserInformationWidgetBuilder {
             _onOpenUserInformationActionClick!();
           }
         },
-        leading: AvatarBuilder()
-          .text(_userProfile != null ? _userProfile!.getAvatarText() : '')
-          .size(40)
+        leading: (AvatarBuilder()
+            ..text(_userProfile != null ? _userProfile!.getAvatarText() : '')
+            ..size(40))
           .build(),
         title: Transform(
           transform: Matrix4.translationValues(0.0, 0.0, 0.0),
diff --git a/lib/features/thread/presentation/thread_controller.dart b/lib/features/thread/presentation/thread_controller.dart
index aa224b610..d7a8ae1ed 100644
--- a/lib/features/thread/presentation/thread_controller.dart
+++ b/lib/features/thread/presentation/thread_controller.dart
@@ -1,3 +1,5 @@
+import 'dart:math';
+
 import 'package:core/core.dart';
 import 'package:core/presentation/utils/responsive_utils.dart';
 import 'package:dartz/dartz.dart';
@@ -63,6 +65,8 @@ class ThreadController extends BaseController {
   final emailListSearch = <PresentationEmail>[].obs;
   final currentSelectMode = SelectMode.INACTIVE.obs;
 
+  final random = Random();
+
   bool canLoadMore = true;
   bool canSearchMore = true;
   MailboxId? _currentMailboxId;
@@ -207,7 +211,10 @@ class ThreadController extends BaseController {
 
   void _getAllEmailSuccess(GetAllEmailSuccess success) {
     _currentEmailState = success.currentEmailState;
-    emailList.value = success.emailList;
+    final listEmailHaveAvatarGradientColor = success.emailList
+        .map((email) => email.asAvatarGradientColor(random))
+        .toList();
+    emailList.value = listEmailHaveAvatarGradientColor;
   }
 
   void _getAllEmailAction(AccountId accountId, {MailboxId? mailboxId}) {
@@ -271,7 +278,10 @@ class ThreadController extends BaseController {
 
   void _loadMoreEmailsSuccess(LoadMoreEmailsSuccess success) {
     if (success.emailList.isNotEmpty) {
-      emailList.addAll(success.emailList);
+      final listEmailHaveAvatarGradientColor = success.emailList
+          .map((email) => email.asAvatarGradientColor(random))
+          .toList();
+      emailList.addAll(listEmailHaveAvatarGradientColor);
     } else {
       canLoadMore = false;
     }
diff --git a/lib/features/thread/presentation/widgets/app_bar_thread_widget_builder.dart b/lib/features/thread/presentation/widgets/app_bar_thread_widget_builder.dart
index a378b3e6a..a333375a1 100644
--- a/lib/features/thread/presentation/widgets/app_bar_thread_widget_builder.dart
+++ b/lib/features/thread/presentation/widgets/app_bar_thread_widget_builder.dart
@@ -74,9 +74,9 @@ class AppBarThreadWidgetBuilder {
         }},
       child: Padding(
         padding: EdgeInsets.zero,
-        child: AvatarBuilder()
-          .text(_userProfile != null ? _userProfile!.getAvatarText() : '')
-          .size(36)
+        child: (AvatarBuilder()
+            ..text(_userProfile != null ? _userProfile!.getAvatarText() : '')
+            ..size(36))
           .build()));
   }
 
diff --git a/lib/features/thread/presentation/widgets/email_tile_builder.dart b/lib/features/thread/presentation/widgets/email_tile_builder.dart
index fd913d513..de0b3860b 100644
--- a/lib/features/thread/presentation/widgets/email_tile_builder.dart
+++ b/lib/features/thread/presentation/widgets/email_tile_builder.dart
@@ -81,7 +81,7 @@ class EmailTileBuilder {
               }
             },
             leading: Transform(
-              transform: Matrix4.translationValues(-10.0, -10.0, 0.0),
+              transform: Matrix4.translationValues(-10.0, -2.0, 0.0),
               child: _buildAvatarIcon()),
             title: Transform(
               transform: Matrix4.translationValues(-10.0, 0.0, 0.0),
@@ -216,7 +216,7 @@ class EmailTileBuilder {
     );
   }
 
-  Widget _buildAvatarIcon () {
+  Widget _buildAvatarIcon() {
     if (_selectModeAll == SelectMode.ACTIVE) {
       return AnimatedSwitcher(
         duration: Duration(milliseconds: 600),
@@ -228,20 +228,24 @@ class EmailTileBuilder {
                     _onSelectEmailActionClick!(_presentationEmail);
                   }}))
               .build()
-          : AvatarBuilder()
-              .text('${_presentationEmail.getAvatarText()}')
-              .size(40)
-              // .iconStatus(_imagePaths.icOffline)
-              .addOnTapActionClick(() {
-                  if (_selectModeAll == SelectMode.ACTIVE && _onSelectEmailActionClick != null) {
-                  _onSelectEmailActionClick!(_presentationEmail);
-                  }})
+          : (AvatarBuilder()
+                ..text('${_presentationEmail.getAvatarText()}')
+                ..size(56)
+                ..textColor(Colors.white)
+                ..avatarColor(_presentationEmail.avatarColors)
+                // .iconStatus(_imagePaths.icOffline)
+                ..addOnTapActionClick(() {
+                    if (_selectModeAll == SelectMode.ACTIVE && _onSelectEmailActionClick != null) {
+                    _onSelectEmailActionClick!(_presentationEmail);
+                    }}))
               .build()
       );
     } else {
-      return AvatarBuilder()
-        .text('${_presentationEmail.getAvatarText()}')
-        .size(40)
+      return (AvatarBuilder()
+          ..text('${_presentationEmail.getAvatarText()}')
+          ..size(56)
+          ..textColor(Colors.white)
+          ..avatarColor(_presentationEmail.avatarColors))
         // .iconStatus(_imagePaths.icOffline)
         .build();
     }
diff --git a/model/lib/email/presentation_email.dart b/model/lib/email/presentation_email.dart
index 3961602b0..a84d6a3f1 100644
--- a/model/lib/email/presentation_email.dart
+++ b/model/lib/email/presentation_email.dart
@@ -1,4 +1,6 @@
 
+import 'dart:ui';
+
 import 'package:equatable/equatable.dart';
 import 'package:jmap_dart_client/jmap/core/unsigned_int.dart';
 import 'package:jmap_dart_client/jmap/core/utc_date.dart';
@@ -26,6 +28,7 @@ class PresentationEmail with EquatableMixin {
   final Map<MailboxId, bool>? mailboxIds;
   final List<MailboxName?>? mailboxNames;
   final SelectMode selectMode;
+  final List<Color>? avatarColors;
 
   PresentationEmail(
     this.id,
@@ -44,7 +47,8 @@ class PresentationEmail with EquatableMixin {
       this.replyTo,
       this.mailboxIds,
       this.mailboxNames,
-      this.selectMode = SelectMode.INACTIVE
+      this.selectMode = SelectMode.INACTIVE,
+      this.avatarColors,
     }
   );
 
@@ -52,9 +56,26 @@ class PresentationEmail with EquatableMixin {
 
   String getAvatarText() {
     if (getSenderName().isNotEmpty) {
-      final regexLetter = RegExp("([A-Za-z])");
-      final firstLetter = regexLetter.firstMatch(getSenderName().trim())?.group(0);
-      return firstLetter != null ? firstLetter.toUpperCase() : '';
+      final listWord = getSenderName().split(' ');
+      if (listWord.length > 1) {
+        final regexLetter = RegExp("([A-Za-z])");
+        final firstLetterOfFirstWord = regexLetter.firstMatch(listWord[0].trim())?.group(0);
+        final firstLetterOfSecondWord = regexLetter.firstMatch(listWord[1].trim())?.group(0);
+
+        if (firstLetterOfFirstWord != null && firstLetterOfSecondWord != null) {
+          return '${firstLetterOfFirstWord.toUpperCase()}${firstLetterOfSecondWord.toUpperCase()}';
+        } else if (firstLetterOfFirstWord != null && firstLetterOfSecondWord == null) {
+          return '${firstLetterOfFirstWord.toUpperCase()}${firstLetterOfFirstWord.toUpperCase()}';
+        } else if (firstLetterOfFirstWord == null && firstLetterOfSecondWord != null) {
+          return '${firstLetterOfSecondWord.toUpperCase()}${firstLetterOfSecondWord.toUpperCase()}';
+        } else {
+          return '';
+        }
+      } else {
+        final regexLetter = RegExp("([A-Za-z])");
+        final firstLetter = regexLetter.firstMatch(getSenderName().trim())?.group(0);
+        return firstLetter != null ? '${firstLetter.toUpperCase()}${firstLetter.toUpperCase()}' : '';
+      }
     }
     return '';
   }
diff --git a/model/lib/extensions/presentation_email_extension.dart b/model/lib/extensions/presentation_email_extension.dart
index 64c68e9f5..dd9f7d150 100644
--- a/model/lib/extensions/presentation_email_extension.dart
+++ b/model/lib/extensions/presentation_email_extension.dart
@@ -1,3 +1,5 @@
+import 'dart:math';
+
 import 'package:core/core.dart';
 import 'package:jmap_dart_client/jmap/mail/email/email.dart';
 import 'package:dartz/dartz.dart';
@@ -136,7 +138,32 @@ extension PresentationEmailExtension on PresentationEmail {
       replyTo: replyTo,
       mailboxIds: mailboxIds,
       mailboxNames: listMailboxName,
-      selectMode: selectMode
+      selectMode: selectMode,
+      avatarColors: avatarColors
+    );
+  }
+
+  PresentationEmail asAvatarGradientColor(Random random) {
+    final newAvatarColors = AppColor.mapGradientColor[random.nextInt(AppColor.mapGradientColor.length)];
+
+    return PresentationEmail(
+      this.id,
+      keywords: keywords,
+      size: size,
+      receivedAt: receivedAt,
+      hasAttachment: hasAttachment,
+      preview: preview,
+      subject: subject,
+      sentAt: sentAt,
+      from: from,
+      to: to,
+      cc: cc,
+      bcc: bcc,
+      replyTo: replyTo,
+      mailboxIds: mailboxIds,
+      mailboxNames: mailboxNames,
+      selectMode: selectMode,
+      avatarColors: avatarColors ?? newAvatarColors,
     );
   }
 }
\ No newline at end of file