Static Constants in C#

I have this code;

using System;

namespace Rapido
{
    class Constants
    {
        public static const string FrameworkName = "Rapido Framework";
    }  
}

Visual Studio tells me: The constant 'Rapido.Constants.FrameworkName' cannot be marked static

How can I make this constant available from other classes without having to create a new instance of it? (ie. directly accessing it via Rapido.Constants.FrameworkName)