diff --git a/assets/scss/style.scss b/assets/scss/style.scss
index 09ee3bb..84eb981 100644
--- a/assets/scss/style.scss
+++ b/assets/scss/style.scss
@@ -181,7 +181,7 @@ table {
 }
 
 .highlight-copy-btn:hover {
-    background-color: #666;
+    background-color: #555;
 }
 
 // Accessibility