diff --git a/style/themes/default/custom.less b/style/themes/default/custom.less
index 1758ebcd33..5f195b418d 100644
--- a/style/themes/default/custom.less
+++ b/style/themes/default/custom.less
@@ -49,7 +49,7 @@
 @btn-primary-border     : shade(@primary-color, 5%);
 
 @btn-default-color      : #666;
-@btn-default-bg         : #f3f5f7;
+@btn-default-bg         : #f4f4f4;
 @btn-default-border     : #d9d9d9;
 
 @btn-ghost-color        : #666;