diff --git a/mkdocs.yml b/mkdocs.yml
index b2f49a83453fb3b00fb80b3725fe7456be726c99..cf744eb5d2dc08f93926aa70879744fff13cb884 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -190,7 +190,7 @@ pages:
 
 extra:
   palette:
-    primary: 'indigo'
+    primary: '1A237E'
     accent: 'light blue'
 
 markdown_extensions: