What colour does red and green make?
You can see by all the different answers that this is a difficult question. Depends on what red and what green, and how/what you are mixing. If your teacher asked you this question in a discussion of color theory, the answer is grey. Red and green are opposite each other on the color wheel, and opposites theoretically mix into a gray. However, in mixing paint, red and green combined in equal quantities often come out a brown or brown-gray. That is because there is really no true red or true green in paint. The combination often has a bit too much yellow to be the theoretical gray you would expect. Then, if you are discussing transmitted light, such as the colors on your computer monitor, red and green make yellow. Aren’t you glad you asked?
