The term 'Ring of Color' can be broken down into two crossword solutions: AREOLE (6 letters) and AREOLA (6 letters). AREOLE is a noun that refers to a small circular area or ring, such as the one found around the base of a tree trunk. AREOLA is also a noun that refers to a small circular area of skin, usually around the nipples or genitals. Both words are derived from the Latin word for 'small open space'.