diff --git a/src/components/main-nav/_main-nav.scss b/src/components/main-nav/_main-nav.scss
index 0290e688..414f45cf 100644
--- a/src/components/main-nav/_main-nav.scss
+++ b/src/components/main-nav/_main-nav.scss
@@ -90,11 +90,11 @@
         &.active > a > span:first-of-type::after {
           content: '';
           position: absolute;
-          bottom: -4px;
+          bottom: 0;
           left: 0;
           width: calc(100%);
           height: 2px;
-          background-color: var(--nsw-brand-accent);
+          background-color: var(--nsw-brand-dark);
         }
       }
     }
@@ -118,11 +118,11 @@
         &.active > span:first-of-type::after {
           content: '';
           position: absolute;
-          bottom: -4px;
+          bottom: 0;
           left: 0;
           width: calc(100%);
           height: 2px;
-          background-color: var(--nsw-brand-accent);
+          background-color: var(--nsw-brand-dark);
         }
 
         &.active .nsw-material-icons {
@@ -166,7 +166,7 @@
         span:first-of-type::after {
           content: '';
           position: absolute;
-          bottom: -4px;
+          bottom: 0;
           left: 0;
           width: calc(100%);
           height: 2px;