diff --git a/src/style/var.less b/src/style/var.less
index 3b907a5e5..ada8b4c0e 100644
--- a/src/style/var.less
+++ b/src/style/var.less
@@ -597,7 +597,7 @@
 @sidebar-disabled-text-color: @gray-5;
 @sidebar-padding: 20px @padding-sm 20px @padding-xs;
 @sidebar-active-color: @active-color;
-@sidebar-background-color: @background-color-light;
+@sidebar-background-color: @background-color;
 @sidebar-selected-font-weight: @font-weight-bold;
 @sidebar-selected-text-color: @text-color;
 @sidebar-selected-border-color: @red;
@@ -765,7 +765,7 @@
 
 // TreeSelect
 @tree-select-font-size: @font-size-md;
-@tree-select-nav-background-color: @background-color-light;
+@tree-select-nav-background-color: @background-color;
 @tree-select-content-background-color: @white;
 @tree-select-nav-item-padding: @padding-sm @padding-xs @padding-sm @padding-sm;
 @tree-select-item-height: 44px;