elpha-ios/elpha-ios/UIColor+HexString.swift

//
//  UIColor+HexString.swift
//  elpha-ios
//
//  Created by Dwayne Harris on 11/6/18.
//  Copyright © 2018 Elpha. All rights reserved.
//

import UIKit

extension UIColor {
    func hexString() -> String {
        var r: CGFloat = 0
        var g: CGFloat = 0
        var b: CGFloat = 0
        var a: CGFloat = 0
        
        getRed(&r, green: &g, blue: &b, alpha: &a)
        
        let rgb: Int = (Int)(r * 255) << 16 | (Int)(g * 255) << 8 | (Int)(b * 255) << 0
        return String(format: "#%06x", rgb)
    }
}