diff --git a/assets/css/_partial/_single/_toc.scss b/assets/css/_partial/_single/_toc.scss
index f259744f..3132cffe 100644
--- a/assets/css/_partial/_single/_toc.scss
+++ b/assets/css/_partial/_single/_toc.scss
@@ -125,7 +125,7 @@
     justify-content: space-between;
     line-height: 2em;
     padding: 0 0.75rem;
-    background: darken($code-background-color, 6%);
+    background: darken($code-background-color, 3%);
 
     [theme='dark'] & {
       background: darken($code-background-color-dark, 6%);
@@ -147,7 +147,7 @@
 
   &.open {
     .toc-title {
-      background: darken($code-background-color, 3%);
+      background: darken($code-background-color, 6%);
 
       [theme='dark'] & {
         background: darken($code-background-color-dark, 3%);