Which one of the following is an example of a tertiary color?

A tertiary color is created by mixing a primary color with a secondary color. In the context of color theory, primary colors are red, blue, and yellow, while secondary colors are formed by mixing primary colors together (for instance, mixing blue and yellow creates green). Tertiary colors are then the result of combining these primary and secondary colors.

Turquoise is an example of a tertiary color because it is formed by mixing blue (a primary color) with green (a secondary color). The combination of these two colors creates the distinct shade known as turquoise, which showcases the blending of both the primary and secondary components.

In contrast, green is classified as a secondary color, yellow is a primary color, and purple is another secondary color formed by blending red and blue. Therefore, in this context, turquoise stands out as the clear example of a tertiary color due to its specific formation through the combination of a primary and a secondary color.