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+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Color 4: OKLab and OKLCH</title>
+<link rel="help" href="https://drafts.csswg.org/css-color-4/#specifying-oklab-oklch">
+<link rel="match" href="oklch-l-almost-0-ref.html">
+<meta name="assert" content="oklch() with lightness very close to 0 should render the same as 0">
+<style>
+ .square { border: 1px solid black; width: 200px; height: 200px; }
+ .test { background-color: red; height: 100px; }
+ /* Non-zero chroma is used to show if the result is black or not, but the
+ * test passes as long as it's the same color. */
+ .ref { background-color: oklch(0 0.2 45); height: 100px; }
+ .test { background-color: oklch(0.0001% 0.2 45); }
+</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>