In the Satya Yuga I become white, in the Treta Yuga I become yellow, in the Dvapara I become red and in the Kali Yuga I become black.
श्वेतः कृतयुगे वर्णः पीतस्त्रेतायुगे मम। रक्तो द्वापमासाद्य कृष्णः कलियुगे तथा॥