diff --git a/scss/color-exploration.scss b/scss/color-exploration.scss
index 4c9888a..235cfc1 100644
--- a/scss/color-exploration.scss
+++ b/scss/color-exploration.scss
@@ -85,6 +85,11 @@
     var(--accent-base-color),
     oklch(from var(--accent-base-color) calc(l * 1.5) calc(c * 2.25) h)
   );
+  --d-sidebar-prefix-background: var(--d-selected);
+  --d-sidebar-highlight-prefix-background: light-dark(
+    oklch(from var(--d-selected) calc(l * 0.85) c h),
+    oklch(from var(--d-selected) calc(l * 0.7) c h)
+  );
   --d-sidebar-highlight-suffix-color: var(--d-sidebar-active-suffix-color);
   --d-sidebar-highlight-color: var(--primary);
   --d-sidebar-highlight-background: var(--d-selected);