diff --git a/core/css.js b/core/css.js
index 9cebc018d5..db8d5c94b5 100644
--- a/core/css.js
+++ b/core/css.js
@@ -722,6 +722,7 @@ Blockly.Css.CONTENT = [
     'color: $colour_textFieldText;',
     'background-color: $colour_textField;',
     'font-weight: 500;',
+    'color-scheme: light;',
   '}',
 
   '.blocklyMainBackground {',