diff --git a/packages/theme-chalk/src/color-picker-panel.scss b/packages/theme-chalk/src/color-picker-panel.scss
index 2eb03fb6dd..c8ec6c3682 100644
--- a/packages/theme-chalk/src/color-picker-panel.scss
+++ b/packages/theme-chalk/src/color-picker-panel.scss
@@ -175,7 +175,6 @@
   box-sizing: border-box;
   width: 280px;
   height: 12px;
-  background-color: #f00;
   padding: 0 2px;
   float: right;