The grey color is a neutral color that comes from mixing white and black colors. Gray comes from mixing complementary colors. The ashes live in the vicinity of the colors and the living color of the endogenous is extinguished. Two heterogeneous colors, which are unbeautiful, bonded by gray, while also making gray beautiful. They will receive a variety of dark and gray colors from the skin of walnuts, onions, pomegranates, pairs and venoms.