The ConsoleColor enum has 16 values.
C# Code:
var random = new Random(); for(var i; i < 100; i++) { Console.ForegroundColor = (ConsoleColor)random.Next((int)ConsoleColor.Black, (int)ConsoleColor.Yellow); Console.BackgroundColor = (ConsoleColor)random.Next((int)ConsoleColor.Black, (int)ConsoleColor.Yellow); Console.WriteLine(i); }