quick-color-picker/quick-color-picker/ColorManager.cs

using System;
using System.Drawing;

namespace quick_color_picker
{
    public static class ColorManager
    {
        public static int[] ColorToHSV(Color color)
        {
            int max = Math.Max(color.R, Math.Max(color.G, color.B));
            int min = Math.Min(color.R, Math.Min(color.G, color.B));

            double hue = color.GetHue();
            double saturation = (max == 0) ? 0 : 1d - (1d * min / max);
            double value = max / 255d;

            int h = Convert.ToInt32(hue);
            int s = Convert.ToInt32(saturation * 100);
            int v = Convert.ToInt32(value * 100);

            return new int[] { h, s, v };
        }

        public static int[] ColorToHSL(Color color)
        {
            float hue = color.GetHue();
            float saturation = color.GetSaturation();
            float lightness = color.GetBrightness();

            int intHue = Convert.ToInt32(hue);
            int intSaturation = Convert.ToInt32(saturation * 100);
            int intLightness = Convert.ToInt32(lightness * 100);

            return new int[] { intHue, intSaturation, intLightness };
        }

        public static int[] ColorToCMYK(Color color)
        {
            double c, m, y, k;
            double r = color.R, g = color.G, b = color.B;
            double r1 = r / 255, g1 = g / 255, b1 = b / 255;

            k = 1 - Math.Max(Math.Max(r1, g1), b1);

            if (k == 1)
            {
                return new int[] { 0, 0, 0, 1 };
            }
            else
            {
                c = (1 - r1 - k) / (1 - k);
                m = (1 - g1 - k) / (1 - k);
                y = (1 - b1 - k) / (1 - k);

                int intC = Convert.ToInt32(c * 100);
                int intM = Convert.ToInt32(m * 100);
                int intY = Convert.ToInt32(y * 100);
                int intK = Convert.ToInt32(k * 100);

                return new int[] { intC, intM, intY, intK };
            }
        }

        public static Color TextToColor(string text)
        {
            string[] strArr = text.Split(',');
            int[] arr = Array.ConvertAll(strArr, s => int.Parse(s));
            return Color.FromArgb(arr[0], arr[1], arr[2]);
        }
    }
}