1 files changed, 2 insertions, 1 deletions

diff --git a/src/styles/tabs.scss b/src/styles/tabs.scss
index fb2f1c32a..31a239387 100644
--- a/src/styles/tabs.scss
+++ b/src/styles/tabs.scss
@@ -33,7 +33,8 @@
   width: $theme-sidebar-width;
 
   &.is-active {
-    background: lighten($theme-brand-primary, 35%);
+    background: change-color($theme-brand-primary,
+                             $lightness: min(lightness($theme-brand-primary) * 1.35, 100));
     border-left-width: 4px;
     border-left-style: solid;
     color: $theme-brand-primary;