What do the colors red orange yellow green blue and purple make?

One could say these colors make a rainbow, though this would not be entirely correct. Rainbow colors cover a continuous spectrum. When rainbow colors are names separately, they are usually listed as red, orange, yellow, green, blue, indigo and violet.

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They make up the colors of the first six billiard balls.

1. Yellow
2. Blue
3. Red
4. Purple
5. Orange
6. Green