<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Color 4: CSS Color 4: rec2020</title>
<style>
.test { background-color: lab(85.7729% -160.7259 109.2319); width: 12em; height: 12em; } /* color(rec2020 0 1 0) converted to Lab */
</style>
<body>
<p>Test passes if you see a single square, and not two rectangles of different colors.</p>
<div class="test"></div>
</body>