diff --git a/app/assets/stylesheets/desktop/topic-post.scss b/app/assets/stylesheets/desktop/topic-post.scss
index 6bcb38288..b378359ac 100644
--- a/app/assets/stylesheets/desktop/topic-post.scss
+++ b/app/assets/stylesheets/desktop/topic-post.scss
@@ -1045,5 +1045,5 @@ a.attachment:before {
 }
 
 span.highlighted {
-  background-color: $highlight;
+  background-color: scale-color($highlight, $lightness: 70%);
 }
\ No newline at end of file