diff --git a/docs/stories/story-12.4-email-template-color-update.md b/docs/stories/story-12.4-email-template-color-update.md
index 9d713fc..22de68f 100644
--- a/docs/stories/story-12.4-email-template-color-update.md
+++ b/docs/stories/story-12.4-email-template-color-update.md
@@ -167,18 +167,18 @@ body {
 
 ## Dev Checklist
 
-- [ ] Update `default.css` header background color to `#2D3624`
-- [ ] Update `default.css` link colors to `#A68966`
-- [ ] Update `default.css` heading colors to `#2D322A`
-- [ ] Update `default.css` button colors (`.button-primary`) to `#A68966`
-- [ ] Update `default.css` table header colors to `#2D3624`
-- [ ] Update `default.css` panel border color to `#C4A882`
-- [ ] Update `default.css` footer link colors to `#A68966`
-- [ ] Update `default.css` body background to `#F4F1EA`
-- [ ] Update `header.blade.php` - inline styles
-- [ ] Update `footer.blade.php` - inline styles
-- [ ] Review `button.blade.php` for inline styles
-- [ ] Review `panel.blade.php` for inline styles
+- [x] Update `default.css` header background color to `#2D3624`
+- [x] Update `default.css` link colors to `#A68966`
+- [x] Update `default.css` heading colors to `#2D322A`
+- [x] Update `default.css` button colors (`.button-primary`) to `#A68966`
+- [x] Update `default.css` table header colors to `#2D3624`
+- [x] Update `default.css` panel border color to `#C4A882`
+- [x] Update `default.css` footer link colors to `#A68966`
+- [x] Update `default.css` body background to `#F4F1EA`
+- [x] Update `header.blade.php` - inline styles
+- [x] Update `footer.blade.php` - inline styles
+- [x] Review `button.blade.php` for inline styles (no inline styles present - uses CSS classes)
+- [x] Review `panel.blade.php` for inline styles (no inline styles present - uses CSS classes)
 - [ ] Test Welcome email appearance (manual)
 - [ ] Test Booking emails appearance (manual)
 - [ ] Test Reminder emails appearance (manual)
@@ -205,24 +205,37 @@ body {
 ## Dev Agent Record
 
 ### Status
-Not Started - Ready for Implementation
+Ready for Review
 
 ### Agent Model Used
-(To be filled during implementation)
+Claude Opus 4.5 (claude-opus-4-5-20251101)
 
 ### File List
 
 | File | Action |
 |------|--------|
-| `resources/views/vendor/mail/html/themes/default.css` | To be modified |
-| `resources/views/vendor/mail/html/header.blade.php` | To be modified |
-| `resources/views/vendor/mail/html/footer.blade.php` | To be modified |
+| `resources/views/vendor/mail/html/themes/default.css` | Modified - Updated all colors to new Dark Charcoal & Warm Gold palette |
+| `resources/views/vendor/mail/html/header.blade.php` | Modified - Updated inline background color to #2D3624 |
+| `resources/views/vendor/mail/html/footer.blade.php` | Modified - Updated inline text color to #2D322A, link color to #A68966 |
+| `resources/views/vendor/mail/html/button.blade.php` | Reviewed - No changes needed, uses CSS classes |
+| `resources/views/vendor/mail/html/panel.blade.php` | Reviewed - No changes needed, uses CSS classes |
+| `resources/views/vendor/mail/html/layout.blade.php` | Reviewed - No changes needed, uses CSS classes |
+| `tests/Feature/Mail/EmailTemplateColorsTest.php` | Modified - Updated test assertions for new color palette |
 
 ### Change Log
 
 | Date | Change |
 |------|--------|
 | 2026-01-04 | Story updated with new Dark Charcoal & Warm Gold palette |
+| 2026-01-04 | Implementation complete - all CSS and blade template colors updated |
 
 ### Completion Notes
-(To be filled during implementation)
+- All email template colors updated to the new Dark Charcoal & Warm Gold palette
+- CSS updates in default.css: body background (#F4F1EA), body text (#2D322A), links (#A68966), headings (#2D322A), header bg (#2D3624), footer text (#2D322A), footer links (#A68966), table headers (#2D3624 bg, #FFFFFF text), buttons (#A68966 bg, #FFFFFF text), panel borders (#C4A882)
+- Header.blade.php: Updated inline background-color to #2D3624
+- Footer.blade.php: Updated inline text colors to #2D322A and link colors to #A68966
+- Button.blade.php and panel.blade.php: No inline color styles present - rely on CSS classes which were updated
+- Layout.blade.php: No color styles present - relies on CSS classes
+- All 128 mail-related tests pass
+- EmailTemplateColorsTest.php updated with 20 tests verifying new color palette
+- Manual testing in email clients still required (marked as manual in checklist)
diff --git a/resources/views/vendor/mail/html/footer.blade.php b/resources/views/vendor/mail/html/footer.blade.php
index 379ceb7..88a9dee 100644
--- a/resources/views/vendor/mail/html/footer.blade.php
+++ b/resources/views/vendor/mail/html/footer.blade.php
@@ -3,17 +3,17 @@
 <table class="footer" align="center" width="570" cellpadding="0" cellspacing="0" role="presentation">
 <tr>
 <td class="content-cell" align="center">
-<p style="color: #71717a; font-size: 12px; margin-bottom: 8px;">
+<p style="color: #2D322A; font-size: 12px; margin-bottom: 8px;">
 <strong>Libra Law Firm | مكتب ليبرا للمحاماة</strong>
 </p>
-<p style="color: #a1a1aa; font-size: 11px; margin-bottom: 4px;">
+<p style="color: #2D322A; font-size: 11px; margin-bottom: 4px;">
 Ramallah, Palestine | رام الله، فلسطين
 </p>
-<p style="color: #a1a1aa; font-size: 11px; margin-bottom: 4px;">
-<a href="mailto:info@libra.ps" style="color: #A5C87A;">info@libra.ps</a>
+<p style="color: #2D322A; font-size: 11px; margin-bottom: 4px;">
+<a href="mailto:info@libra.ps" style="color: #A68966;">info@libra.ps</a>
 </p>
-<p style="color: #a1a1aa; font-size: 11px;">
-<a href="{{ config('app.url') }}" style="color: #A5C87A;">{{ config('app.url') }}</a>
+<p style="color: #2D322A; font-size: 11px;">
+<a href="{{ config('app.url') }}" style="color: #A68966;">{{ config('app.url') }}</a>
 </p>
 {{ Illuminate\Mail\Markdown::parse($slot) }}
 </td>
diff --git a/resources/views/vendor/mail/html/header.blade.php b/resources/views/vendor/mail/html/header.blade.php
index 19ed55c..c0277a6 100644
--- a/resources/views/vendor/mail/html/header.blade.php
+++ b/resources/views/vendor/mail/html/header.blade.php
@@ -1,6 +1,6 @@
 @props(['url'])
 <tr>
-<td class="header" style="background-color: #8AB357; padding: 25px; text-align: center;">
+<td class="header" style="background-color: #2D3624; padding: 25px; text-align: center;">
 <a href="{{ $url }}" style="display: inline-block;">
 @if (trim($slot) === 'Laravel')
 <img src="{{ asset('images/logo-email.png') }}" class="logo" alt="LIBRA for Rights" style="height: 60px; width: 60px;">
diff --git a/resources/views/vendor/mail/html/themes/default.css b/resources/views/vendor/mail/html/themes/default.css
index ef94b10..104abf5 100644
--- a/resources/views/vendor/mail/html/themes/default.css
+++ b/resources/views/vendor/mail/html/themes/default.css
@@ -10,8 +10,8 @@ body *:not(html):not(style):not(br):not(tr):not(code) {
 
 body {
     -webkit-text-size-adjust: none;
-    background-color: #ffffff;
-    color: #52525b;
+    background-color: #F4F1EA;
+    color: #2D322A;
     height: 100%;
     line-height: 1.4;
     margin: 0;
@@ -28,7 +28,7 @@ blockquote {
 }
 
 a {
-    color: #8AB357;
+    color: #A68966;
 }
 
 a img {
@@ -38,7 +38,7 @@ a img {
 /* Typography */
 
 h1 {
-    color: #6A9337;
+    color: #2D322A;
     font-size: 18px;
     font-weight: bold;
     margin-top: 0;
@@ -46,7 +46,7 @@ h1 {
 }
 
 h2 {
-    color: #6A9337;
+    color: #2D322A;
     font-size: 16px;
     font-weight: bold;
     margin-top: 0;
@@ -54,7 +54,7 @@ h2 {
 }
 
 h3 {
-    color: #6A9337;
+    color: #2D322A;
     font-size: 14px;
     font-weight: bold;
     margin-top: 0;
@@ -82,7 +82,7 @@ img {
     -premailer-cellpadding: 0;
     -premailer-cellspacing: 0;
     -premailer-width: 100%;
-    background-color: #f8fafc;
+    background-color: #F4F1EA;
     margin: 0;
     padding: 0;
     width: 100%;
@@ -100,7 +100,7 @@ img {
 /* Header */
 
 .header {
-    background-color: #8AB357;
+    background-color: #2D3624;
     padding: 25px 0;
     text-align: center;
 }
@@ -128,9 +128,9 @@ img {
     -premailer-cellpadding: 0;
     -premailer-cellspacing: 0;
     -premailer-width: 100%;
-    background-color: #f8fafc;
-    border-bottom: 1px solid #f8fafc;
-    border-top: 1px solid #f8fafc;
+    background-color: #F4F1EA;
+    border-bottom: 1px solid #F4F1EA;
+    border-top: 1px solid #F4F1EA;
     margin: 0;
     padding: 0;
     width: 100%;
@@ -179,13 +179,13 @@ img {
 }
 
 .footer p {
-    color: #a1a1aa;
+    color: #2D322A;
     font-size: 12px;
     text-align: center;
 }
 
 .footer a {
-    color: #A5C87A;
+    color: #A68966;
     text-decoration: underline;
 }
 
@@ -200,14 +200,15 @@ img {
 }
 
 .table th {
+    background-color: #2D3624;
     border-bottom: 1px solid #e4e4e7;
-    color: #8AB357;
+    color: #FFFFFF;
     margin: 0;
     padding-bottom: 8px;
 }
 
 .table td {
-    color: #52525b;
+    color: #2D322A;
     font-size: 15px;
     line-height: 18px;
     margin: 0;
@@ -243,12 +244,12 @@ img {
 
 .button-blue,
 .button-primary {
-    background-color: #8AB357;
-    border-bottom: 8px solid #8AB357;
-    border-left: 18px solid #8AB357;
-    border-right: 18px solid #8AB357;
-    border-top: 8px solid #8AB357;
-    color: #E8E4DC;
+    background-color: #A68966;
+    border-bottom: 8px solid #A68966;
+    border-left: 18px solid #A68966;
+    border-right: 18px solid #A68966;
+    border-top: 8px solid #A68966;
+    color: #FFFFFF;
 }
 
 .button-green,
@@ -272,18 +273,18 @@ img {
 /* Panels */
 
 .panel {
-    border-left: #A5C87A solid 4px;
+    border-left: #C4A882 solid 4px;
     margin: 21px 0;
 }
 
 .panel-content {
     background-color: #fafafa;
-    color: #52525b;
+    color: #2D322A;
     padding: 16px;
 }
 
 .panel-content p {
-    color: #52525b;
+    color: #2D322A;
 }
 
 .panel-item {
diff --git a/tests/Feature/Mail/EmailTemplateColorsTest.php b/tests/Feature/Mail/EmailTemplateColorsTest.php
index d2c611a..252b02d 100644
--- a/tests/Feature/Mail/EmailTemplateColorsTest.php
+++ b/tests/Feature/Mail/EmailTemplateColorsTest.php
@@ -2,104 +2,136 @@
 
 use Illuminate\Support\Facades\File;
 
-test('default.css uses new charcoal color for links', function () {
+// Story 12.4: Email Template Color Update - Dark Charcoal & Warm Gold palette
+// Colors: Warm Gold #A68966, Forest Green #2D322A, Dark Forest Green #2D3624,
+//         Gold Light #C4A882, Warm Cream #F4F1EA, White #FFFFFF
+
+test('default.css uses warm gold color for links', function () {
     $css = File::get(resource_path('views/vendor/mail/html/themes/default.css'));
 
     expect($css)->toContain('a {')
-        ->and($css)->toContain('color: #4A4A42;');
+        ->and($css)->toContain('color: #A68966;');
 });
 
-test('default.css uses new charcoal color for h1 headings', function () {
+test('default.css uses forest green color for h1 headings', function () {
     $css = File::get(resource_path('views/vendor/mail/html/themes/default.css'));
 
-    expect($css)->toMatch('/h1\s*\{[^}]*color:\s*#4A4A42;/');
+    expect($css)->toMatch('/h1\s*\{[^}]*color:\s*#2D322A;/');
 });
 
-test('default.css uses new charcoal color for h2 headings', function () {
+test('default.css uses forest green color for h2 headings', function () {
     $css = File::get(resource_path('views/vendor/mail/html/themes/default.css'));
 
-    expect($css)->toMatch('/h2\s*\{[^}]*color:\s*#4A4A42;/');
+    expect($css)->toMatch('/h2\s*\{[^}]*color:\s*#2D322A;/');
 });
 
-test('default.css uses new charcoal color for h3 headings', function () {
+test('default.css uses forest green color for h3 headings', function () {
     $css = File::get(resource_path('views/vendor/mail/html/themes/default.css'));
 
-    expect($css)->toMatch('/h3\s*\{[^}]*color:\s*#4A4A42;/');
+    expect($css)->toMatch('/h3\s*\{[^}]*color:\s*#2D322A;/');
 });
 
-test('default.css uses new charcoal color for header background', function () {
+test('default.css uses dark forest green for header background', function () {
     $css = File::get(resource_path('views/vendor/mail/html/themes/default.css'));
 
-    expect($css)->toMatch('/\.header\s*\{[^}]*background-color:\s*#4A4A42;/');
+    expect($css)->toMatch('/\.header\s*\{[^}]*background-color:\s*#2D3624;/');
 });
 
-test('default.css uses new warm gray color for footer links', function () {
+test('default.css uses warm gold color for footer links', function () {
     $css = File::get(resource_path('views/vendor/mail/html/themes/default.css'));
 
-    expect($css)->toMatch('/\.footer a\s*\{[^}]*color:\s*#C9C4BA;/');
+    expect($css)->toMatch('/\.footer a\s*\{[^}]*color:\s*#A68966;/');
 });
 
-test('default.css uses new charcoal color for table headers', function () {
+test('default.css uses dark forest green for table headers with white text', function () {
     $css = File::get(resource_path('views/vendor/mail/html/themes/default.css'));
 
-    expect($css)->toMatch('/\.table th\s*\{[^}]*color:\s*#4A4A42;/');
+    expect($css)->toMatch('/\.table th\s*\{[^}]*background-color:\s*#2D3624;/')
+        ->and($css)->toMatch('/\.table th\s*\{[^}]*color:\s*#FFFFFF;/');
 });
 
-test('default.css uses new charcoal background for primary buttons', function () {
+test('default.css uses warm gold background for primary buttons', function () {
     $css = File::get(resource_path('views/vendor/mail/html/themes/default.css'));
 
-    expect($css)->toMatch('/\.button-primary\s*\{[^}]*background-color:\s*#4A4A42;/');
+    expect($css)->toMatch('/\.button-primary\s*\{[^}]*background-color:\s*#A68966;/');
 });
 
-test('default.css uses new off-white text for primary buttons', function () {
+test('default.css uses white text for primary buttons', function () {
     $css = File::get(resource_path('views/vendor/mail/html/themes/default.css'));
 
-    expect($css)->toMatch('/\.button-primary\s*\{[^}]*color:\s*#E8E4DC;/');
+    expect($css)->toMatch('/\.button-primary\s*\{[^}]*color:\s*#FFFFFF;/');
 });
 
-test('default.css uses new warm gray color for panel border', function () {
+test('default.css uses gold light color for panel border', function () {
     $css = File::get(resource_path('views/vendor/mail/html/themes/default.css'));
 
-    expect($css)->toMatch('/\.panel\s*\{[^}]*border-left:\s*#C9C4BA/');
+    expect($css)->toMatch('/\.panel\s*\{[^}]*border-left:\s*#C4A882/');
 });
 
-test('header.blade.php uses new charcoal background color', function () {
+test('default.css uses warm cream for body background', function () {
+    $css = File::get(resource_path('views/vendor/mail/html/themes/default.css'));
+
+    expect($css)->toMatch('/body\s*\{[^}]*background-color:\s*#F4F1EA;/')
+        ->and($css)->toMatch('/\.wrapper\s*\{[^}]*background-color:\s*#F4F1EA;/')
+        ->and($css)->toMatch('/\.body\s*\{[^}]*background-color:\s*#F4F1EA;/');
+});
+
+test('default.css uses forest green for body text', function () {
+    $css = File::get(resource_path('views/vendor/mail/html/themes/default.css'));
+
+    expect($css)->toMatch('/body\s*\{[^}]*color:\s*#2D322A;/');
+});
+
+test('default.css uses forest green for footer paragraph text', function () {
+    $css = File::get(resource_path('views/vendor/mail/html/themes/default.css'));
+
+    expect($css)->toMatch('/\.footer p\s*\{[^}]*color:\s*#2D322A;/');
+});
+
+test('header.blade.php uses dark forest green background color', function () {
     $header = File::get(resource_path('views/vendor/mail/html/header.blade.php'));
 
-    expect($header)->toContain('background-color: #4A4A42;');
+    expect($header)->toContain('background-color: #2D3624;');
 });
 
-test('header.blade.php does not use old navy color', function () {
+test('header.blade.php does not use old green color', function () {
     $header = File::get(resource_path('views/vendor/mail/html/header.blade.php'));
 
-    expect($header)->not->toContain('#0A1F44');
+    expect($header)->not->toContain('#8AB357');
 });
 
-test('footer.blade.php uses new warm gray color for links', function () {
+test('footer.blade.php uses warm gold color for links', function () {
     $footer = File::get(resource_path('views/vendor/mail/html/footer.blade.php'));
 
-    expect($footer)->toContain('color: #C9C4BA;');
+    expect($footer)->toContain('color: #A68966;');
 });
 
-test('footer.blade.php does not use old gold color', function () {
+test('footer.blade.php uses forest green for text', function () {
     $footer = File::get(resource_path('views/vendor/mail/html/footer.blade.php'));
 
-    expect($footer)->not->toContain('#D4AF37');
+    expect($footer)->toContain('color: #2D322A;');
 });
 
-test('default.css does not use old navy color for headings and links', function () {
+test('footer.blade.php does not use old light green color', function () {
+    $footer = File::get(resource_path('views/vendor/mail/html/footer.blade.php'));
+
+    expect($footer)->not->toContain('#A5C87A');
+});
+
+test('default.css does not use old green color for headings and links', function () {
     $css = File::get(resource_path('views/vendor/mail/html/themes/default.css'));
 
-    // Check that old navy color is not used in headings
-    expect($css)->not->toMatch('/h1\s*\{[^}]*color:\s*#0A1F44;/')
-        ->and($css)->not->toMatch('/h2\s*\{[^}]*color:\s*#0A1F44;/')
-        ->and($css)->not->toMatch('/h3\s*\{[^}]*color:\s*#0A1F44;/');
+    // Check that old green colors are not used
+    expect($css)->not->toMatch('/h1\s*\{[^}]*color:\s*#6A9337;/')
+        ->and($css)->not->toMatch('/h2\s*\{[^}]*color:\s*#6A9337;/')
+        ->and($css)->not->toMatch('/h3\s*\{[^}]*color:\s*#6A9337;/')
+        ->and($css)->not->toContain('color: #8AB357;');
 });
 
-test('default.css does not use old gold color for buttons and panels', function () {
+test('default.css does not use old green color for buttons and panels', function () {
     $css = File::get(resource_path('views/vendor/mail/html/themes/default.css'));
 
-    // Check that old gold color is not used in buttons
-    expect($css)->not->toMatch('/\.button-primary\s*\{[^}]*background-color:\s*#D4AF37;/')
-        ->and($css)->not->toMatch('/\.panel\s*\{[^}]*border-left:\s*#D4AF37/');
+    // Check that old green colors are not used in buttons and panels
+    expect($css)->not->toMatch('/\.button-primary\s*\{[^}]*background-color:\s*#8AB357;/')
+        ->and($css)->not->toMatch('/\.panel\s*\{[^}]*border-left:\s*#A5C87A/');
 });