css/css-color/lab-l-over-100-1.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Color 4: Verify lightness in Lab is always clamped to a value between 0 to 100</title>
<link rel="help" href="https://drafts.csswg.org/css-color/#cie-lab">
<link rel="match" href="lab-l-over-100-ref.html">
<meta name="assert" content="lab() with lightness greater than 100">
<style>
    .square { border: 1px solid black; width: 200px; height: 200px}
    .ref { background-color: lab(100 150 20); height: 100px}
    /* l = 150 should clamp back to 100 */
    .test { background-color: lab(150 150 20); height: 100px}
</style>

<body>
    <p>Test passes if you see a square border with a single color inside.</p>
    <div class="square">
        <div class="ref"></div>
        <div class="test"></div>
    </div>
</body>