diff --git a/framework/core/less/admin/ExtensionPage.less b/framework/core/less/admin/ExtensionPage.less
index 074fd0e2b..f60cd1ca0 100644
--- a/framework/core/less/admin/ExtensionPage.less
+++ b/framework/core/less/admin/ExtensionPage.less
@@ -101,7 +101,7 @@
     margin-top: 20px;
     padding: 10px 0;
 
-    input {
+    input, .ColorInput {
       max-width: 400px;
     }
   }