Avoid Colorblindness Issues by Using Sufficient Contrast

Summary

Sufficient Contrast can also help users with Colorblindness.

Final Code

<head>
  <style>
  body {
    color: hsl(0, 55%, 15%);
    background-color: hsl(120, 25%, 55%);
  }
  </style>
</head>
<body>
  <header>
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</body>