Which color is not present in the primary color scheme?

The primary colors are red, blue, and yellow. These colors serve as the foundation for creating a wide range of other colors through mixing. Green, however, is not a primary color; it is a secondary color that can be created by mixing blue and yellow. This understanding is crucial in color theory, where primary colors cannot be created by mixing other colors together, unlike secondary colors like green, which result from the combination of two primary colors. Therefore, identifying green as not being part of the primary color scheme is accurate because it does not belong to the essential group of colors from which all others can be derived.