diff --git a/.changeset/slow-masks-itch.md b/.changeset/slow-masks-itch.md
new file mode 100644
index 00000000..e7f02def
--- /dev/null
+++ b/.changeset/slow-masks-itch.md
@@ -0,0 +1,5 @@
+---
+"@primer/css": patch
+---
+
+color-mode mixin fix for keyboard toggle