diff --git a/app/assets/stylesheets/common/base/discourse.scss b/app/assets/stylesheets/common/base/discourse.scss
index 91731735c30..13425cfa9c0 100644
--- a/app/assets/stylesheets/common/base/discourse.scss
+++ b/app/assets/stylesheets/common/base/discourse.scss
@@ -171,7 +171,7 @@ body {
   height: 80px;
   top: -18px !important;
   right: -18px !important;
-  box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.85);
+  box-shadow: 0 0 0 9999px rgba($primary, 0.85);
   border-radius: 100%;
   z-index: 1040;
 }