diff --git a/src/css/themes/default.css b/src/css/themes/default.css
index 28b592f62..f627c35ff 100644
--- a/src/css/themes/default.css
+++ b/src/css/themes/default.css
@@ -460,6 +460,12 @@
     --popup-ruleset-tool-shadow: transparent;
 }
 
+@media (prefers-contrast: more) {
+    :root {
+        --checkbox-checked-ink: var(--ink-1);
+    }
+}
+
 /*
  * Rule colors
  * */