lc(50deg + (sign(1em - 10px) * 10deg)) -100 300 / 0.5)", "hsl(calc(50deg + (10deg * sign(1em - 10px))) 0 300 / 0.5)"],
    ["hsla(calc(50deg + (sign(1em - 10px) * 10deg)) -100% 300% / 0.5)", "hsl(calc(50deg + (10deg * sign(1em - 10px))) 0 300 / 0.5)"],
];

for (const test of tests) {
    test_valid_value("color", test[0], test[1], test[2] ? `[${test[2]}]` : undefined);
}

</script>
</body>
</html>
