diff --git a/docs/stylesheets/extra.css b/docs/stylesheets/extra.css
index 131b68f22d..7d52db2e7b 100644
--- a/docs/stylesheets/extra.css
+++ b/docs/stylesheets/extra.css
@@ -13,11 +13,14 @@
 [data-md-color-scheme="default"] {
   /* EB colours - main logo border colours */
   --eb-blue:  #72a4b0;
+  --eb-blue-dark:  #538693;  /* darker variant of blue in logo */
   --eb-green: #8ca379;
+  --eb-green-dark: #71895d;
   --eb-red:   #ab5860;
+  --eb-red-dark:   #88444b;
 
   --md-primary-fg-color:             #1c1e26;
 
-  --md-typeset-a-color:              var(--eb-red);
-  --md-accent-fg-color:              var(--eb-green);
+  --md-typeset-a-color:              var(--eb-blue-dark);
+  --md-accent-fg-color:              var(--eb-green-dark);
 }