diff --git a/app/assets/css/button.css b/app/assets/css/button.css
index 030364c33..e1ca06857 100644
--- a/app/assets/css/button.css
+++ b/app/assets/css/button.css
@@ -84,12 +84,15 @@ fieldset[disabled] .btn {
 /* secondary-grey */
 .btn-default,
 .btn-light {
-  @apply bg-white border-gray-5 text-gray-9;
+  @apply bg-gray-2 border-gray-5 text-gray-9;
   @apply hover:bg-gray-3 hover:border-gray-5 hover:text-gray-10;
 
   /* dark mode */
   @apply th-dark:bg-gray-warm-10 th-dark:border-gray-warm-7 th-dark:text-gray-warm-4;
   @apply th-dark:hover:bg-gray-warm-9 th-dark:hover:border-gray-6 th-dark:hover:text-gray-warm-4;
+
+  @apply th-highcontrast:bg-black th-highcontrast:border-gray-2 th-highcontrast:text-white;
+  @apply th-highcontrast:hover:bg-gray-9 th-highcontrast:hover:border-gray-6 th-highcontrast:hover:text-gray-warm-4;
 }
 
 .btn-light:active,