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<!DOCTYPE html>
<meta charset="UTF-8">
<title>color interpolation</title>
<link rel="help" href="https://drafts.csswg.org/css-color/#the-color-property">
<meta name="assert" content="color supports animation by computed value type">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/css/support/interpolation-testcommon.js"></script>
<style>
.parent {
color: blue;
}
.target {
display: inline-block;
font-size: 60pt;
color: yellow;
}
.expected {
margin-right: 15px;
}
</style>
<body>
<template id="target-template">T</template>
</body>
<script>
test_interpolation({
property: 'color',
from: neutralKeyframe,
to: 'green',
}, [
{at: -0.3, expect: 'rgb(255, 255, 0)'},
{at: 0, expect: 'rgb(255, 255, 0)'},
{at: 0.3, expect: 'rgb(179, 217, 0)'},
{at: 0.6, expect: 'rgb(102, 179, 0)'},
{at: 1, expect: 'rgb(0, 128, 0)'},
{at: 1.5, expect: 'rgb(0, 65, 0)'},
]);
test_interpolation({
property: 'color',
from: 'initial',
to: 'green',
}, [
{at: -0.3, expect: 'rgb(0, 0, 0)'},
{at: 0, expect: 'rgb(0, 0, 0)'},
{at: 0.3, expect: 'rgb(0, 38, 0)'},
{at: 0.6, expect: 'rgb(0, 77, 0)'},
{at: 1, expect: 'rgb(0, 128, 0)'},
{at: 1.5, expect: 'rgb(0, 192, 0)'},
]);
test_interpolation({
property: 'color',
from: 'inherit',
to: 'green',
}, [
{at: -0.3, expect: 'rgb(0, 0, 255)'},
{at: 0, expect: 'rgb(0, 0, 255)'},
{at: 0.3, expect: 'rgb(0, 38, 179)'},
{at: 0.6, expect: 'rgb(0, 77, 102)'},
{at: 1, expect: 'rgb(0, 128, 0)'},
{at: 1.5, expect: 'rgb(0, 192, 0)'},
]);
test_interpolation({
property: 'color',
from: 'unset',
to: 'green',
}, [
{at: -0.3, expect: 'rgb(0, 0, 255)'},
{at: 0, expect: 'rgb(0, 0, 255)'},
{at: 0.3, expect: 'rgb(0, 38, 179)'},
{at: 0.6, expect: 'rgb(0, 77, 102)'},
{at: 1, expect: 'rgb(0, 128, 0)'},
{at: 1.5, expect: 'rgb(0, 192, 0)'},
]);
test_interpolation({
property: 'color',
from: 'black',
to: 'orange',
}, [
{at: -0.3, expect: 'rgb(0, 0, 0)'},
{at: 0, expect: 'rgb(0, 0, 0)'},
{at: 0.3, expect: 'rgb(77, 50, 0)'},
{at: 0.6, expect: 'rgb(153, 99, 0)'},
{at: 1, expect: 'rgb(255, 165, 0)'},
{at: 1.5, expect: 'rgb(255, 248, 0)'},
]);
test_interpolation({
property: 'color',
from: 'rgb(0 0 0)',
to: 'color(srgb 1 1 1)',
}, [
{at: -0.3, expect: 'oklab(0 0 0)'},
{at: 0, expect: 'oklab(0 0 0)'},
{at: 0.3, expect: 'oklab(0.3 0 0)'},
{at: 0.6, expect: 'oklab(0.6 0 0)'},
{at: 1, expect: 'oklab(1 0 0)'},
{at: 1.5, expect: 'oklab(1 0 0)'},
]);
test_interpolation({
property: 'color',
from: 'color(srgb 0 0 0)',
to: 'rgb(255 255 255)',
}, [
{at: -0.3, expect: 'oklab(0 0 0)'},
{at: 0, expect: 'oklab(0 0 0)'},
{at: 0.3, expect: 'oklab(0.3 0 0)'},
{at: 0.6, expect: 'oklab(0.6 0 0)'},
{at: 1, expect: 'oklab(1 0 0)'},
{at: 1.5, expect: 'oklab(1 0 0)'},
]);
test_interpolation({
property: 'color',
from: 'color(srgb 0 0 0)',
to: 'color(srgb 1 1 1)',
}, [
{at: -0.3, expect: 'oklab(0 0 0)'},
{at: 0, expect: 'oklab(0 0 0)'},
{at: 0.3, expect: 'oklab(0.3 0 0)'},
{at: 0.6, expect: 'oklab(0.6 0 0)'},
{at: 1, expect: 'oklab(1 0 0)'},
{at: 1.5, expect: 'oklab(1 0 0)'},
]);
</script>
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