diff --git a/plugins/plugin-client-common/web/scss/PatternFly/kui-alignment.scss b/plugins/plugin-client-common/web/scss/PatternFly/kui-alignment.scss
index fca304514e9..ea4674b704d 100644
--- a/plugins/plugin-client-common/web/scss/PatternFly/kui-alignment.scss
+++ b/plugins/plugin-client-common/web/scss/PatternFly/kui-alignment.scss
@@ -89,7 +89,7 @@
   --pf-global--BackgroundColor--dark-100: var(--color-ui-01);
   --pf-global--BackgroundColor--dark-200: var(--color-table-border3);
   --pf-global--BackgroundColor--dark-300: var(--color-ui-03);
-  --pf-global--BackgroundColor--dark-400: var(--color-ui-04);
+  --pf-global--BackgroundColor--dark-400: rgba(255, 255, 255, 0.1);
   --pf-global--BackgroundColor--dark-transparent-100: rgba(3, 3, 3, 0.62);
   --pf-global--BackgroundColor--dark-transparent-200: rgba(3, 3, 3, 0.32);
   --pf-global--Color--100: var(--color-ui-01);
@@ -213,6 +213,9 @@
   --pf-global--palette--black-900: var(--color-base06);
   --pf-global--palette--black-1000: var(--color-base06);
 
+  /** e.g. background color of selected nav items */
+  --pf-global--BackgroundColor--dark-400: rgba(200, 200, 200, 0.1);
+
   /* .pf-t-dark */
   @include pf-t-dark;
 }