chromium/third_party/blink/web_tests/fast/css/color-quirk.html

<html>
<head>
    <title>Bug 12145: Illegal color Syntax rendered (quirks mode)</title>
    <style type="text/css">
      .example { color: ff0000 }
      .example2 { color: 0100ff }
    </style>
</head>
<body>
    <p class="example">this should be red</p>
    <p class="example2">this should be blue</p>
</body>
</html>