css/css-color/out-of-gamut-legacy-rgb.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Color 4: Out Of Gamut Legacy SRGB Color with Transparency</title>
<link rel="author" title="Aaron Krajeski" href="mailto:aaronhk@chromium.org">
<link rel="help" href="https://drafts.csswg.org/css-color-4/#rgb-functions">
<link rel="match" href="out-of-gamut-legacy-rgb-ref.html">
<style>
  /*  See crbug.com/1483736.
      Values above 255 were being stored for legacy colors which was causing
      them to be rendered a if their alphas were greater.
  */
  body {
    background-color: black;
  }
  div {
    height: 100px;
    background-color: rgba(500, 500, 500, 0.5);
  }
</style>
<body>
  <div></div>
</body>