using System;

using System.Drawing;

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

public class Program

{

    public static void Main()

    {

        JObject obj = JObject.Parse(@"{ ""Color"" : 16711680 }");

        JsonSerializer serializer = new JsonSerializer();

        serializer.Converters.Add(new ColorConverter());

        Color c = obj["Color"].ToObject<Color>(serializer);

        Console.WriteLine(c.ToString());

    }

}

​

class ColorConverter : JsonConverter

{

    public override bool CanConvert(Type objectType)

    {

        return (objectType == typeof(Color));

    }

    public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)

    {

        writer.WriteValue(((Color)value).ToArgb());

    }

    public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)

    {

        return Color.FromArgb(Convert.ToInt32(reader.Value));

    }

}

​