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+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Color 4: Verify lightness in Oklab is always clamped to a value between 0% to 100%</title>
+<link rel="help" href="https://drafts.csswg.org/css-color/#ok-lab">
+<link rel="match" href="oklab-l-over-1-ref.html">
+<meta name="assert" content="oklab() with lightness greater than 100%">
+<style>
+ .ref { background-color: oklab(100% 0.5 0.2); width: 100px; height: 100px}
+ /* l = 150 should clamp back to 100 */
+ .test { background-color: oklab(150% 0.5 0.2); width: 100px; height: 100px}
+</style>
+
+<body>
+ <p>Test passes if you see a single color.</p>
+ <div class="ref"></div>
+ <div class="test"></div>
+</body>