<!DOCTYPE html>
<style>
  #link {
    background-color: GrayText;
    color: GrayText !important;
    forced-color-adjust: none;
  }
</style>
<body>
  <span href="" id="link">
    In forced colors mode, the used value for -webkit-tap-highlight-color
    should remain GrayText.
  </span>
</body>