White Color to RGB not correct

Question

Check out the code

const CGFloat *c = CGColorGetComponents([[UIColor whiteColor] CGColor]); 
slider1.value = c[0];
slider2.value = c[1];
slider3.value = c[2];

c[2] is getting 0. For whiteColor all RGB values shld be 1.0. Why its not returning correct value for the blue component?

Any code snippet? for getting RGB values from white color?

Answer 1

Try CGColorGetColorSpace([[UIColor whiteColor] CGColor])

You will see it is not RGB. It has 2 components only: greyscale and alpha