diff --git a/packages/vant-css/src/common/var.css b/packages/vant-css/src/common/var.css
index 7f3bd754e..bfddf7d70 100644
--- a/packages/vant-css/src/common/var.css
+++ b/packages/vant-css/src/common/var.css
@@ -12,7 +12,7 @@ $gray-dark: #999;
 
 /* default colors */
 $text-color: #333;
-$border-color: $gray-light;
+$border-color: #eee;
 $active-color: #e8e8e8;
 $background-color: #f8f8f8;
 
diff --git a/packages/vant-css/src/mixins/hairline.css b/packages/vant-css/src/mixins/hairline.css
index 81949784a..778ae4e40 100644
--- a/packages/vant-css/src/mixins/hairline.css
+++ b/packages/vant-css/src/mixins/hairline.css
@@ -1,4 +1,4 @@
-@mixin hairline($border-color: #e5e5e5) {
+@mixin hairline($border-color: #eee) {
   content: '';
   position: absolute;
   top: 0;