No one soul is a single color. Even if it only shines a pure white color. If you take that light and refract it using a glass prism, all of its many colors reveal themselves.

(Blue) Childlike whimsy
(Green) Existential wonder
(Red) Gentlehuman love and respect
(Cyan) Creative thought
(Violet) Obsessive passion
(Yellow) Quiet observation

(White) With the Lord unifying them all into one being.