diff --git a/polygerrit-ui/app/elements/diff/gr-diff/gr-diff.html b/polygerrit-ui/app/elements/diff/gr-diff/gr-diff.html
index 625d6e88b9..565bfab07a 100644
--- a/polygerrit-ui/app/elements/diff/gr-diff/gr-diff.html
+++ b/polygerrit-ui/app/elements/diff/gr-diff/gr-diff.html
@@ -28,9 +28,10 @@ limitations under the License.
     <style>
       :host {
         --light-remove-highlight-color: #fee;
-        --dark-remove-highlight-color: #ffd4d4;
+        --dark-remove-highlight-color: rgba(255, 0, 0, 0.15);
         --light-add-highlight-color: #efe;
-        --dark-add-highlight-color: #d4ffd4;
+        --dark-add-highlight-color: rgba(0, 255, 0, 0.15);
+
       }
       :host.no-left .sideBySide ::content .left,
       :host.no-left .sideBySide ::content .left + td,