7, 128, 77, 0.5)"],
    ["hwb(120 30% 50)", "rgb(77, 128, 77)"],
    ["hwb(120 30% 50 / 0.5)", "rgba(77, 128, 77, 0.5)"],
    ["hwb(120 30 50%)", "rgb(77, 128, 77)"],
    ["hwb(120 30 50% / 0.5)", "rgba(77, 128, 77, 0.5)"],
    ["hwb(120 none 50)", "rgb(0, 128, 0)"],
    ["hwb(120 none 50 / 0.5)", "rgba(0, 128, 0, 0.5)"],
    ["hwb(120 30 none)", "rgb(77, 255, 77)"],
    ["hwb(120 30 none / 0.5)", "rgba(77, 255, 77, 0.5)"],
    ["hwb(120 30 50 / none)", "rgba(77, 128, 77, 0)"],

    // Test that rounding ha