Q: Why is the color from the digital iGen proof different from the color I see on my computer screen? A: Computer screen colors are built with a process called RGB. This stands for RED, GREEN, and BLUE. Computer screens (like TV screens) use these three colors of light to create color. Digital printing creates colors with CMYK -- CYAN, MAGENTA, YELLOW, and BLACK. These are toner colors that are mixed to create the array of colors.