Check out example codes for "system.drawing.color to system.consolecolor". It will help you in understanding the concepts better.

Code Example 1

int index = (c.R > 128 | c.G > 128 | c.B > 128) ? 8 : 0;
                index |= (c.R > 64) ? 4 : 0; 
                index |= (c.G > 64) ? 2 : 0; 
                index |= (c.B > 64) ? 1 : 0; 
                Console.ForegroundColor = (System.ConsoleColor)index;

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