what 2 colors make purple?

http://library.thinkquest.org/J002045F/color.htm

red+blue

The color purple is made by mixing two primary colors: blue and red. When you combine them together, the wavelengths of both colors are reflected, resulting in the perception of purple.

To obtain purple, you can try the following steps:

1. Start with equal parts of blue and red paint or ink on a palette or in separate containers.
2. Use a paintbrush or mixing tool to blend the blue and red colors together.
3. Continue mixing until you achieve your desired shade of purple. You can adjust the amounts of blue and red to create different variations of purple, from deep violet to lighter lavender.

It is important to note that this color mixing process applies to traditional subtractive color systems, such as paint or ink. In additive color systems, like those used in digital displays, purple can be created by combining red and blue light.