diff --git a/plugins/proofable-mcp/.codex-plugin/plugin.json b/plugins/proofable-mcp/.codex-plugin/plugin.json
index 1587a92..1a09d41 100644
--- a/plugins/proofable-mcp/.codex-plugin/plugin.json
+++ b/plugins/proofable-mcp/.codex-plugin/plugin.json
@@ -46,7 +46,7 @@
       "code",
       "search"
     ],
-    "brandColor": "#98C0EF",
+    "brandColor": "#2F5097",
     "composerIcon": "./assets/icon.svg",
     "logo": "./assets/icon.svg",
     "screenshots": []