Converts .NET color objects into Cocoa color objects and vice versa. Useful when coding with MonoMac.

gistfile1.cs

public static class ColorConverter
{
    public static NSColor FromColor(Color c)
    {
        float red = IntToFloat(c.R);
        float green = IntToFloat(c.G);
        float blue = IntToFloat(c.B);

        return NSColor.FromDeviceRgba(red, green, blue, 1);
    }

    public static Color FromNSColor(NSColor c)
    {
        int red = FloatToInt(c.RedComponent);
        int green = FloatToInt(c.GreenComponent);
        int blue = FloatToInt(c.BlueComponent);

        return Color.FromArgb(red, green, blue);
    }

    // Converts values from 0..255 to 0..1
    static float IntToFloat(int i)
    {
        float multiplier = 1f / 255f;
        return (float)i * multiplier;
    }

    // Converts values from 0..1 to 0..255
    static int FloatToInt(float f)
    {
        float f2 = Math.Max(0.0f, Math.Min(1.0f, f));
        int i = (int) Math.Floor(f2 == 1.0f ? 255 : f2 * 256.0f);
        return i;
    }
}