    test_valid_value(`color`, `oklch(from oklch(0.7 0.45 30) l c h / 0)`, `oklch(0.7 0.45 30 / 0)`);
    test_valid_value(`color`, `oklch(from oklch(0.7 0.45 30 / 40%) 0 c h / alpha)`, `oklch(0 0.45 30 / 0.4)`);
    test_valid_value(`color`, `oklch(from oklch(0.7 0.45 30 / 40%) l 0 h / alpha)`, `oklch(0.7 0 30 / 0.4)`);
    test_valid_value(`color`, `oklch(from oklch(0.7 0.45 30 / 40%) l c 0 / alpha)`, `oklch(0.7 0.45 0 / 0.4)`);
    test_valid_value(`color`, `oklch(from oklch(0.7 0.45 30 / 40%) l c 0deg / 