Mbh 12.188.1

"'"Bhrigu said, 'Brahman first created a few Brahmanas who came to be called Prajapatis (lords of creation). Possessed of splendour equal to that of the fire or the Sun, they were created out of the energy of that First-born Being. The puissant Lord then created Truth, Duty, Penance, the eternal Vedas, all kinds of pious acts, and Purity, for enabling creatures to attain to heaven (by practising them). After this, the Deities and the Danavas, the Gandharvas, the Daityas, the Asuras, the great snakes, the Yakshas, the Rakshasas, the Serpents, the Pisachas, and human beings with their four divisions, viz., Brahmanas, Kshatriyas, Vaisyas, and Sudras, O best of regenerate ones, and all the other orders of creatures that exist, were created. The complexion the Brahmanas obtained was white; that which the Kshatriyas obtained was red; that which the Vaisyas got was yellow; and that which was given to the Sudras was black.'