diff --git a/app/assets/stylesheets/helpers/_header.scss b/app/assets/stylesheets/helpers/_header.scss
index e9a0aad8d..790f905b5 100644
--- a/app/assets/stylesheets/helpers/_header.scss
+++ b/app/assets/stylesheets/helpers/_header.scss
@@ -325,11 +325,13 @@
   display: none;
 }
 
+$light-blue: #259EDA;
+
 .global-bar {
   background-color: #E5EAF1;
   display: none;
   padding: 15px 0;
-  border-top: 8px solid $govuk-blue;
+  border-top: 8px solid $light-blue;
 
   .show-global-bar & {
     display: block;