diff --git a/frontend/src/v2-theme.css b/frontend/src/v2-theme.css
index cfec1bed..c36eff6d 100644
--- a/frontend/src/v2-theme.css
+++ b/frontend/src/v2-theme.css
@@ -51,6 +51,8 @@ body[data-ui-version="v2"][data-theme="light"] {
   --gn-warn:        #d97706;
   --gn-warn-soft:   rgba(245, 158, 11, 0.14);
   --gn-danger:      #dc2626;
+  --gn-danger-strong: #dc2626;
+  --gn-danger-strong-hover: #b91c1c;
 
   --gn-shadow-sm:   0 1px 2px rgba(15, 23, 42, 0.05);
   --gn-shadow-md:   0 4px 14px rgba(15, 23, 42, 0.08);
@@ -93,6 +95,8 @@ body[data-ui-version="v2"][data-theme="dark"] {
   --gn-warn:        #f59e0b;
   --gn-warn-soft:   rgba(245, 158, 11, 0.16);
   --gn-danger:      #f87171;
+  --gn-danger-strong: #dc2626;
+  --gn-danger-strong-hover: #b91c1c;
 
   --gn-shadow-sm:   0 1px 2px rgba(0, 0, 0, 0.4);
   --gn-shadow-md:   0 4px 14px rgba(0, 0, 0, 0.45);
@@ -293,6 +297,18 @@ body[data-ui-version="v2"] .ant-btn-dangerous {
   color: var(--gn-danger) !important;
 }
 
+body[data-ui-version="v2"] .ant-btn-primary.ant-btn-dangerous:not(:disabled):not(.ant-btn-disabled) {
+  background: var(--gn-danger-strong) !important;
+  border-color: var(--gn-danger-strong) !important;
+  color: #fff !important;
+}
+
+body[data-ui-version="v2"] .ant-btn-primary.ant-btn-dangerous:not(:disabled):not(.ant-btn-disabled):hover {
+  background: var(--gn-danger-strong-hover) !important;
+  border-color: var(--gn-danger-strong-hover) !important;
+  color: #fff !important;
+}
+
 body[data-ui-version="v2"] .ant-btn-link {
   color: var(--gn-info) !important;
 }
diff --git a/frontend/src/v2ThemeModalConfirm.test.ts b/frontend/src/v2ThemeModalConfirm.test.ts
index a26dd57e..3390aa60 100644
--- a/frontend/src/v2ThemeModalConfirm.test.ts
+++ b/frontend/src/v2ThemeModalConfirm.test.ts
@@ -8,4 +8,10 @@ describe('v2 modal confirm theme', () => {
     expect(v2ThemeCss).toMatch(/body\[data-ui-version="v2"\]\s+\.ant-modal-confirm\s+\.ant-modal-confirm-title\s*\{[^}]*color:\s*var\(--gn-fg-1\)\s*!important;/s);
     expect(v2ThemeCss).toMatch(/body\[data-ui-version="v2"\]\s+\.ant-modal-confirm\s+\.ant-modal-confirm-content\s*\{[^}]*color:\s*var\(--gn-fg-2\)\s*!important;/s);
   });
+
+  it('keeps primary danger buttons high contrast in confirm dialogs', () => {
+    expect(v2ThemeCss).toMatch(/--gn-danger-strong:\s*#dc2626;/);
+    expect(v2ThemeCss).toMatch(/body\[data-ui-version="v2"\]\s+\.ant-btn-primary\.ant-btn-dangerous:not\(:disabled\):not\(\.ant-btn-disabled\)\s*\{[^}]*background:\s*var\(--gn-danger-strong\)\s*!important;[^}]*border-color:\s*var\(--gn-danger-strong\)\s*!important;[^}]*color:\s*#fff\s*!important;/s);
+    expect(v2ThemeCss).toMatch(/body\[data-ui-version="v2"\]\s+\.ant-btn-primary\.ant-btn-dangerous:not\(:disabled\):not\(\.ant-btn-disabled\):hover\s*\{[^}]*background:\s*var\(--gn-danger-strong-hover\)\s*!important;[^}]*color:\s*#fff\s*!important;/s);
+  });
 });