Use HEX Color code String in iOS- Swift

Sometime we need to create custom app colors and use it to through out the project with HEX Color code String. Below is the way of create a color with HEX Color code string and use it as per your requirement.

extension UIColor {

static var random: UIColor {
let r:CGFloat = .random(in: 0…1)
let g:CGFloat = .random(in: 0…1)
let b:CGFloat = .random(in: 0…1)
return UIColor(red: r, green: g, blue: b, alpha: 1)
}

static var appGray: UIColor {
return UIColor(hexString: “#828383”)
}

var hexString: String {
let components = cgColor.components
let r: CGFloat = components?[0] ?? 0.0
let g: CGFloat = components?[1] ?? 0.0
let b: CGFloat = components?[2] ?? 0.0
let hexString = String(format: “#%02lX%02lX%02lX”, lroundf(Float(r * 255)), lroundf(Float(g * 255)),lroundf(Float(b * 255)))
return hexString
}

convenience init(hexString: String) {
let hex = hexString.trimmingCharacters(in: CharacterSet.alphanumerics.inverted)
var int = UInt64()
Scanner(string: hex).scanHexInt64(&int)
let a, r, g, b: UInt64
switch hex.count {
case 3: // RGB (12-bit)
(a, r, g, b) = (255, (int >> 8) * 17, (int >> 4 & 0xF) * 17, (int & 0xF) * 17)

case 6: // RGB (24-bit)
(a, r, g, b) = (255, int >> 16, int >> 8 & 0xFF, int & 0xFF)

case 8: // ARGB (32-bit)
(a, r, g, b) = (int >> 24, int >> 16 & 0xFF, int >> 8 & 0xFF, int & 0xFF)

default:
(a, r, g, b) = (255, 0, 0, 0)
}
self.init(red: CGFloat(r) / 255, green: CGFloat(g) / 255, blue: CGFloat(b) / 255, alpha: CGFloat(a) / 255)
}
}

Happy Coding!!