diff --git a/src/scss/colours/thematic/_grey.scss b/src/scss/colours/thematic/_grey.scss
deleted file mode 100644
index 91ed365b..00000000
--- a/src/scss/colours/thematic/_grey.scss
+++ /dev/null
@@ -1,13 +0,0 @@
-:root {
-  --grey-50: #f9fafb;
-  --grey-100: #f3f4f6;
-  --grey-200: #e5e7eb;
-  --grey-300: #d1d5db;
-  --grey-400: #9ca3af;
-  --grey-500: #6b7280;
-  --grey-600: #4b5563;
-  --grey-700: #374151;
-  --grey-800: #1f2937;
-  --grey-900: #111827;
-  --grey-950: #030712;
-}