UIColor to Hexadecimal (web color)

Question

Is there an easy way to convert UIColor to a hexadecimal value ?
Or do we have to get the RGB components with CGColorGetComponents and then work it

Answer 1

This is how I do did it with Swift 3:

extension UIColor {
    var hex:String{
        get{
            var red:CGFloat = 0
            var blue:CGFloat = 0
            var green:CGFloat = 0
            var alpha:CGFloat = 0

            self.getRed(&red, green: &green, blue: &blue, alpha: &alpha)
            let rgb:Int = (Int)(red*255)<<16 | (Int)(green*255)<<8 | (Int)(blue*255)<<0
            return String.localizedStringWithFormat("#%06x", rgb)
        }
    }
}

Or you can make it a method. I just like how color.hex looks vs color.hex().