Get Slightly Lighter and Darker Color from UIColor

Question

I was looking to be able to turn any UIColor into a gradient. The way I am intending to do this is by using Core Graphics to draw a gradient. What I am trying to do is to ge

Answer 1

If you convert the RGB color to the HSL color model then you can vary the L = lightness component from L = 0.0 (black) over L = 0.5 (natural color) to L = 1.0 (white) . UIColor cannot handle HSL directly, but there are formula for converting RGB <-> HSL.