diff --git a/doc/stylesheets/extra.css b/doc/stylesheets/extra.css
index 2297503898b2fca8441eaf89c8346a765f0b203c..b08be39f93e6aa4200886f9fe499c38f70c850e5 100644
--- a/doc/stylesheets/extra.css
+++ b/doc/stylesheets/extra.css
@@ -5,8 +5,8 @@
     --color3: #FFDE17;
     --color4: #BFD730;
     --color5: #2BB673;
-    --color6: #C800D4;
-    --color7: #397EC1;
+    --color6: #645FAA;
+    --color7: #387EC1;
     --color8: #004A8D;
     --color9: #000000;