Tertiary

In order to get tertiary colors you would have to both mix primary and secondary colors. For example in order to get yellow-orange you would have to mix both yellow and orange together. For red-orange you would mix red and orange. For red-purple you would mix red and purple together. For a blue-purple you would mix both blue and purple. For blue-green you would mix blue and green. Lastly for yellow-green you would mix yellow and green together.