How do you make the colors black and white?

Answer 1

You don't. Use black to adjust the shade of a color.

Use white to adjust the tint of a color.

You can make black with equal amounts of magenta, yellow, and cyan. That's how my color printer does it.

The traditional primaries make brown instead of black, because they must be leaky to make any kind of green or violet. The traditional complements make brown because they are not truly complementary, but lean toward orange or yellow.

Answer 2

To make a color black, you combine equal parts of cyan, magenta, and yellow. To make a color white, you use no colors at all, as white is the absence of color.