diff --git a/aider/website/_includes/head_custom.html b/aider/website/_includes/head_custom.html
index 4ef264500..7601552d4 100644
--- a/aider/website/_includes/head_custom.html
+++ b/aider/website/_includes/head_custom.html
@@ -24,7 +24,7 @@
 
   /* Sidebar gradient styling to match hero section */
   .side-bar {
-    background: linear-gradient(135deg, rgba(20, 176, 20, 0.15) 0%, rgba(20, 176, 20, 0.1) 25%, rgba(201, 214, 255, 0.7) 50%, rgba(179, 198, 255, 0.8) 75%, rgba(163, 189, 255, 0.9) 100%);
+    background: linear-gradient(135deg, rgba(20, 176, 20, 0.15) 0%, rgba(20, 176, 20, 0.1) 25%, rgba(201, 214, 255, 0.7) 50%, rgba(179, 198, 255, 0.8) 75%, #F5F6FA 100%);
   }
 </style>
 <link rel="alternate" type="application/rss+xml" title="RSS Feed" href="{{ site.url }}/feed.xml">