diff --git a/src/css/custom.css b/src/css/custom.css
index dcef0f1..2306cc7 100644
--- a/src/css/custom.css
+++ b/src/css/custom.css
@@ -19,7 +19,7 @@
 
 /* For readability concerns, you should choose a lighter palette in dark mode. */
 [data-theme='dark'] {
-  --ifm-color-primary: #585ff0;
+  --ifm-color-primary: #666ded;
   --ifm-color-primary-dark: #21af90;
   --ifm-color-primary-darker: #1fa588;
   --ifm-color-primary-darkest: #1a8870;