ios - UIColor colorWithRed:green:blue:alpha: always returns white unless one argument is 0

Question

I am using

[UIColor colorWithRed:136 green:155 blue:218 alpha:1.0]; 

to change the background color of my table view cells.

But for some reason the background just stays white. If I try

[UIColor colorWithRed:0 green:155 blue:218 alpha:1.0]; 

the color changes. This does not make sense to me. Any advice or tips?

Answer 1

The parameter aren't a values of 0 to 255 but a float between 0.0 and 1.0:

[UIColor colorWithRed:0.0f/255.0f green:155.0f/255.0f blue:218.0f/255.0f alpha:1.0f];