You can pass array of colors in this function in order to change any color of an UIImage. Just pass UIColor and UIImage to this function.

+(UIImage *)changeColorTo:(NSMutableArray*) array Transparent: (UIImage *)image
{
    CGImageRef rawImageRef=image.CGImage;


//    const float colorMasking[6] = {222, 255, 222, 255, 222, 255};

const CGFloat colorMasking[6] = {[[array objectAtIndex:0] floatValue], [[array objectAtIndex:1] floatValue], [[array objectAtIndex:2] floatValue], [[array objectAtIndex:3] floatValue], [[array objectAtIndex:4] floatValue], [[array objectAtIndex:5] floatValue]};


UIGraphicsBeginImageContext(image.size);
CGImageRef maskedImageRef=CGImageCreateWithMaskingColors(rawImageRef, colorMasking);
{
    //if in iphone
    CGContextTranslateCTM(UIGraphicsGetCurrentContext(), 0.0, image.size.height);
    CGContextScaleCTM(UIGraphicsGetCurrentContext(), 1.0, -1.0);
}

CGContextDrawImage(UIGraphicsGetCurrentContext(), CGRectMake(0, 0, image.size.width, image.size.height), maskedImageRef);
UIImage *result = UIGraphicsGetImageFromCurrentImageContext();
CGImageRelease(maskedImageRef);
UIGraphicsEndImageContext();
return result;


}

Happy Coding!!!