UIColor+fromHex.h

@interface UIColor (fromHex)
+ (UIColor *)colorwithHexString:(NSString *)hexStr alpha:(CGFloat)alpha;
@end

UIColor+fromHex.m

@implementation UIColor (fromHex)
 
+ (UIColor *)colorwithHexString:(NSString *)hexStr alpha:(CGFloat)alpha;
{
  //-----------------------------------------
  // Convert hex string to an integer
  //-----------------------------------------
  unsigned int hexint = 0;
 
  // Create scanner
  NSScanner *scanner = [NSScanner scannerWithString:hexStr];
 
  // Tell scanner to skip the # character
  [scanner setCharactersToBeSkipped:[NSCharacterSet 
    characterSetWithCharactersInString:@"#"]];
  [scanner scanHexInt:&hexint];
 
  //-----------------------------------------
  // Create color object, specifying alpha
  //-----------------------------------------
  UIColor *color =
    [UIColor colorWithRed:((CGFloat) ((hexint & 0xFF0000) >> 16))/255
    green:((CGFloat) ((hexint & 0xFF00) >> 8))/255
    blue:((CGFloat) (hexint & 0xFF))/255
    alpha:alpha];
 
  return color;
}
 
@end