diff --git a/packages/frontend-core/src/components/grid/cells/GridCell.svelte b/packages/frontend-core/src/components/grid/cells/GridCell.svelte
index dfc53f6f0c..6589c18d07 100644
--- a/packages/frontend-core/src/components/grid/cells/GridCell.svelte
+++ b/packages/frontend-core/src/components/grid/cells/GridCell.svelte
@@ -117,6 +117,9 @@
   .cell.error {
     --cell-color: var(--spectrum-global-color-red-500);
   }
+  .cell.readonly {
+    --cell-color: var(--spectrum-global-color-gray-600);
+  }
   .cell:not(.focused) {
     user-select: none;
   }