Are you also tired of splitting that long RGB value into red, green and blue and converting them to a format that UIColor understands? I was, so I wrote a macro that converts the value on compile time and returns an UIColor autorelease object with the correct values:
#define UIColorFromRGB(rgbValue) [UIColor \ colorWithRed:((float)((rgbValue & 0xFF0000) >> 16))/255.0 \ green:((float)((rgbValue & 0xFF00) >> 8))/255.0 \ blue:((float)(rgbValue & 0xFF))/255.0 alpha:1.0]
In your code you can use it like this:
UIColor myGreen = UIColorFromRGB(0x00FF00);
Put this in your global header referenced from <project_name>_Prefix.pch and you can use it everywhere in your project without importing it excplicitly.