diff --git a/less/variables.less b/less/variables.less
index 765dff6a0c..13ba8885ce 100644
--- a/less/variables.less
+++ b/less/variables.less
@@ -91,7 +91,7 @@
 // -------------------------
 
 @btn-default-color:              #fff;
-@btn-default-bg:                 #a7a9aa;
+@btn-default-bg:                 #474949;
 @btn-default-border:             @btn-default-bg;
 
 @btn-primary-color:              @btn-default-color;