diff --git a/theme.json b/theme.json
index 803af83..2bd6219 100644
--- a/theme.json
+++ b/theme.json
@@ -296,6 +296,11 @@
       },
       "core/button": {
         "variations": {
+          "fill": {
+            "color": {
+              "background": "var(--wp--preset--color--main-purple)"
+            }
+          },
           "outline": {
             "color": {
               "background": "#E8BFE2",