diff --git a/src/client/theme/cafe.json5 b/src/client/theme/cafe.json5
index c607946ab5..084f69299c 100644
--- a/src/client/theme/cafe.json5
+++ b/src/client/theme/cafe.json5
@@ -16,5 +16,6 @@
 		renoteGradient: '#ffe1c7',
 		renoteText: '$primary',
 		quoteBorder: '$primary',
+		mfmMention: '#56907b',
 	},
 }