diff --git a/frontend/src/pages/admin/roles.astro b/frontend/src/pages/admin/roles.astro
index e64b1f1..f4a6635 100644
--- a/frontend/src/pages/admin/roles.astro
+++ b/frontend/src/pages/admin/roles.astro
@@ -99,7 +99,7 @@ import { API_BASE } from '../../lib/api';
   .role-badge.system {
     background: var(--color-primary);
     border-color: transparent;
-    color: var(--color-primary-contrast);
+    color: var(--color-on-primary);
   }
 
   .role-description {