color`, `hsl(from rebeccapurple 0 0% 0%)`, `rgb(0, 0, 0)`);
    test_valid_value(`color`, `hsl(from rebeccapurple 0deg 0% 0%)`, `rgb(0, 0, 0)`);
    test_valid_value(`color`, `hsl(from rebeccapurple 0 0% 0% / 0)`, `rgba(0, 0, 0, 0)`);
    test_valid_value(`color`, `hsl(from rebeccapurple 0deg 0% 0% / 0)`, `rgba(0, 0, 0, 0)`);
    test_valid_value(`color`, `hsl(from rebeccapurple 0 s l / alpha)`, `rgb(153, 51, 51)`);
    test_valid_value(`color`, `hsl(from rebeccapurple 0deg s l / alpha)`, `rgb(153, 51, 51)`