As a color expert, I can tell you that when it comes to mixing colors, specifically in the context of subtractive color mixing (such as with pigments), red is one of the primary colors. This means that red cannot be created by mixing other colors together; instead, it is one of the base colors from which other colors are derived. However, in the context of additive color mixing (such as with light), red can be produced by combining certain other colors of light. Specifically, in the RGB color model (which stands for Red, Green, and Blue), red is one of the three primary colors of light, and it is not created by mixing other colors of light.

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Simple answer you cannot combine two pigments to make red. There are three primary colors red, yellow, and blue no other colors can be combined to make them. However there are also the three secondary colors green,orange, and violet that you can make with the three primary colors.read more >>