colors in c#

Console.ForegroundColor = ConsoleColor.DarkBlue;
Console.BackgroundColor = ConsoleColor.Yellow;
Console.Write("Hello ");
Console.ForegroundColor = ConsoleColor.Yellow;
Console.BackgroundColor = ConsoleColor.Red;
Console.Write("les couleurs");
Console.ForegroundColor = ConsoleColor.Black;
Console.BackgroundColor = ConsoleColor.White;
Console.Write(" dans la console\n");

This code in C# is supposed to put some colors on my text, but it always put it in white. why?

This is the link to my project: https://repl.it/@homelessgames/ViolentRegularConditional