Process Color Printing On A One-color Press

On the second pass, print the two colors that are the most important, namely cyan and magenta. Cyan and magenta are responsible for making secondary hues, such as blue skies and water. The cyan on the second pass is also partly responsible for making green grass and tree leaves when mixed with the yellow. The magenta on the second pass is also partly responsible for making flesh tones, as well as food items likes bread and meats when mixed with yellow.