The HSL model describes colors in terms of hue, saturation, and lightness (also called luminance).
https://en.wikibooks.org/wiki/Color_Models:_RGB,_HSV,_HSL#HSL
The HSL model describes colors in terms of hue, saturation, and lightness (also called luminance).
Link
https://en.wikibooks.org/wiki/Color_Models:_RGB,_HSV,_HSL#HSL