HexadecimalColor

HexadecimalColor.swift

import SwiftUI

extension Color {
    init?(hex: String) {
        var hexSanitized = hex.trimmingCharacters(in: .whitespacesAndNewlines)
        hexSanitized = hexSanitized.replacingOccurrences(of: "#", with: "")

        var rgb: UInt64 = 0

        var red: CGFloat = 0.0
        var green: CGFloat = 0.0
        var blue: CGFloat = 0.0
        var alfa: CGFloat = 1.0

        let length = hexSanitized.count

        guard Scanner(string: hexSanitized).scanHexInt64(&rgb) else { return nil }

        if length == 6 {
            red = CGFloat((rgb & 0xFF0000) >> 16) / 255.0
            green = CGFloat((rgb & 0x00FF00) >> 8) / 255.0
            blue = CGFloat(rgb & 0x0000FF) / 255.0

        } else if length == 8 {
            red = CGFloat((rgb & 0xFF000000) >> 24) / 255.0
            green = CGFloat((rgb & 0x00FF0000) >> 16) / 255.0
            blue = CGFloat((rgb & 0x0000FF00) >> 8) / 255.0
            alfa = CGFloat(rgb & 0x000000FF) / 255.0

        } else {
            return nil
        }

        self.init(red: red, green: green, blue: blue, opacity: alfa)
    }
}