Convert HEX color code to UIColor

Extensions.swift

extension UIColor {
    static func colorFromHex(_ hex: String) -> UIColor {
        var hexString = hex.trimmingCharacters(in: .whitespacesAndNewlines).uppercased()
        if hexString.hasPrefix("#") {
            hexString.remove(at: hexString.startIndex)
        }
        if hexString.count != 6 {
            return UIColor.magenta
        }

        var rgb: UInt32 = 0
        Scanner(string: hexString).scanHexInt32(&rgb)

        return UIColor(red: CGFloat((rgb & 0xFF0000) >> 16)/255,
                       green: CGFloat((rgb & 0x00FF00) >> 8)/255,
                       blue: CGFloat(rgb & 0x0000FF)/255,
                       alpha: 1.0)
    }
}

// How to use it:
myView.backgroundColor = UIColor.colorFromHex("#BC214B")