How to convert HSL (hue, saturation, lightness) to HSLum (hue, saturation, luminance) and HSLum/RGB?
问题 I want to convert some color values from well know HSL to less known HSLum how to do it? hsl(0, 1.0, 0.5) - rgb red is hslum(0, 1.0., 0.54) hsl(120, 1.0, 0.5 - rgb green is hslum(0, 1.0, 0.80) hsl(240, 1.0, 0.5) - rgb blue is hslum(0, 1.0, 0.44) As far as I know luminance (not lightness) is calculate in such way: Y = 0.2126 * R + 0.7152 * G + 0.0722 * B I read some articles: Luminance (relative), 21296247, HSL and HSV, luma, Lightness, Munsell but not found solution? As far I know CIELab 1976