(22) The green color alludes to the vegetation which covers the face of the earth, and therefore represents the robe of Nature. The black represents death and corruption as being the way to a new life and generation. "Except a man be born again, he cannot see the kingdom of God." (John iii. 3.) White, yellow, and red signify the three principal colors of the alchemical, Hermetical, universal medicine after the blackness of its putrefaction is over.

(47) Moreover, it is the imaging or forming of all sorts of red colours in its own quality; in the sweet it imageth or formeth all sorts of white and blue; in the astringent, or harsh and sour, it formeth all sorts of green, dusky and mixed colours, with all manner of forms or figures and smells.

(68) Timaeus: but when these colors are mixed and more completely burned, and black is blended therewith, the result is “violet.” “Chestnut” comes from the blending of yellow and grey; and “grey” from white and black; and “ochre” from white mixed with yellow. And when white is combined with “bright” and is steeped in deep black it turns into a “dark blue” color; and dark blue mixed with white becomes “light blue”; and chestnut with black becomes “green.” As to the rest, it is fairly clear from these examples