A complement to Chromonyms and Chromonyms 2, which are restricted to nouns that have appeared in at least one dictionary. If a word can be either a noun or an adjective, I list it as a noun. This list is restricted to mononyms that have appeared in print, but without the dictionary requirement. I haven't listed adjectives that are not strongly associated with a particular color (e.g., lurid, opalescent, iridescent).