public static void Test()
        {
            Color c1 = Color.OrangeRed;
            Color c2 = Color.GreenYellow;
            Color c3 = ColorTranslator.FromHtml(@"#0066CC");
            Color c4 = ColorTranslator.FromHtml(@"#FF0000");

            RgbColor color01 = new RgbColor(255, 0, 0);
            RgbColor color02 = new RgbColor(0, 255, 0);
            RgbColor color03 = new RgbColor(0, 0, 255);

            RgbColor color04 = new RgbColor(255, 255, 0);
            RgbColor color05 = new RgbColor(255, 0, 255);
            RgbColor color06 = new RgbColor(0, 255, 255);

            RgbColor color07 = new RgbColor(0, 0, 0);
            RgbColor color08 = new RgbColor(255, 255, 255);

            // --

            //HsbColor hsb01 = HsbColor.FromColor( color01 );
            //HsbColor hsb02 = new HsbColor(
            //(int)color01.GetHue(),
            //(int)(color01.GetSaturation()*100),
            //(int)(color01.GetBrightness()*100) );

            HslColor hsl02 = HslColor.FromRgbColor(color02);
            HsbColor hsb01 = HsbColor.FromRgbColor(color01);

            //HslColor hsl02 = new HslColor(
            //    (int)color01.GetHue(),
            //    (int)(color01.GetSaturation() * 100),
            //    (int)(color01.GetBrightness() * 100) );

            RgbColor r = hsl02.ToRgbColor();

            RgbColor o1 = new RgbColor(115, 72, 50);
            HslColor o2 = o1.ToHslColor();
            RgbColor o3 = o2.ToRgbColor();

            // --

            int i = 0;
        }