1 files changed, 4 insertions, 3 deletions
diff --git a/app/assets/stylesheets/highlight/dark.scss b/app/assets/stylesheets/highlight/dark.scss
index c26edec8ee3..db6c99ff8d3 100644
--- a/app/assets/stylesheets/highlight/dark.scss
+++ b/app/assets/stylesheets/highlight/dark.scss
@@ -20,6 +20,7 @@ $dark-highlight-bg: #ffe792;
 $dark-highlight-color: $black;
 $dark-pre-hll-bg: #373b41;
 $dark-hll-bg: #373b41;
+$dark-over-bg: #ded7fc;
 $dark-c: #969896;
 $dark-err: #c66;
 $dark-k: #b294bb;
@@ -141,11 +142,11 @@ $dark-il: #de935f;
 
     .diff-line-num {
       &.is-over {
-        background-color: #ded7fc;
-        border-color: darken(#ded7fc, 5%);
+        background-color: $dark-over-bg;
+        border-color: darken($dark-over-bg, 5%);
 
         a {
-          color: darken(#ded7fc, 15%);
+          color: darken($dark-over-bg, 15%);
         }
       }
     }