diff --git a/assets/step.css b/assets/step.css
index 0b4516b..4624979 100644
--- a/assets/step.css
+++ b/assets/step.css
@@ -29,7 +29,7 @@ body {
 }
 
 #markdownReadme.exercise {
-  background-color: #deecf9;
+  background-color: #ecf6fd;
 }
 
 #markdownReadme pre {