Creating a purple color is not a one-dimensional process, it is not about simply blending red and blue. You need to look at color as having many facets, you need a more multidimensional perspective. If you are a painter and you have to look at all the blue and red colors you have, you will begin to understand the potential for all the color variations. Ultimately, a simple blue and red does make purple. However, depending on the type of red and blue you use, it opens the door to different shades of purple.