UIColor category for creating a random color.

UIColor+Random.h

@interface UIColor (Random)

+ (UIColor *)randomColor;
 
@end

UIColor+Random.m

#import "UIColor+Random.h"
 
@implementation UIColor (Random)
 
+ (UIColor *)randomColor
{
    // 0.0 to 1.0
    CGFloat hue = ( arc4random() % 256 / 256.0 );
    
    // 0.5 to 1.0, away from white
    CGFloat saturation = ( arc4random() % 128 / 256.0 ) + 0.5;
    
    // 0.5 to 1.0, away from black.
    CGFloat brightness = ( arc4random() % 128 / 256.0 ) + 0.5;
    
    return [UIColor colorWithHue:hue
                      saturation:saturation
                      brightness:brightness
                           alpha:1];
}
 
@end