将HSL转换为RGB

Question

这应该设置HSL颜色代码并在RGB中打印出它的等效颜色 它应打印出97,153,194 相反，它打印出0.3808,0.60153333333333,0.7592。

function HSL(hue, saturation, lightness, alpha)
    if hue < 0 or hue > 360 then
        return 0, 0, 0, alpha
    end
    if saturation < 0 or saturation > 1 then
        return 0, 0, 0, alpha
    end
    if lightness < 0 or lightness > 1 then
        return 0, 0, 0, alpha
    end
    local chroma = (1 - math.abs(2 * lightness - 1)) * saturation
    local h = hue/60
    local x =(1 - math.abs(h % 2 - 1)) * chroma
    local r, g, b = 0, 0, 0
    if h < 1 then
        r,g,b=chroma,x,0
    elseif h < 2 then
        r,b,g=x,chroma,0
    elseif h < 3 then
        r,g,b=0,chroma,x
    elseif h < 4 then
        r,g,b=0,x,chroma
    elseif h < 5 then
        r,g,b=x,0,chroma
    else
        r,g,b=chroma,0,x
    end
    local m = lightness - chroma/2
    return r+m,g+m,b+m,alpha
end

print(HSL(205, .44, .57))

Answer 1

您的函数提供0-1范围内的值;乘以256得到它在0-256范围内。