diff --git a/src/css/less/variables.dark.less b/src/css/less/variables.dark.less
index 608dfb609b0..c65a6f99179 100644
--- a/src/css/less/variables.dark.less
+++ b/src/css/less/variables.dark.less
@@ -257,7 +257,7 @@
 // Form states and alerts
 // -------------------------
 @warningText:             darken(#c09853, 10%);
-@warningBackground:       @grayLighter;
+@warningBackground:       @orange;
 @warningBorder:           transparent;
 
 @errorText:               #b94a48;