diff --git a/.github/actions/spelling/patterns.txt b/.github/actions/spelling/patterns.txt
index 56512e46..9497a00e 100644
--- a/.github/actions/spelling/patterns.txt
+++ b/.github/actions/spelling/patterns.txt
@@ -3,3 +3,5 @@ https?:\S*
 ([A-Za-z])\1{3,}
 # Any CLI args (-xzf -aef)
 \ -\w+\b
+# Hex colors (dummy group to not be treated as comment)
+(#)([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})