CC Adi 3.36
- āsan varṇās trayo hy asya
- gṛhṇato ’nu-yugaṁ tanūḥ
- śuklo raktas tathā pīta
- idānīṁ kṛṣṇatāṁ gataḥ
āsan—were; varṇāḥ—colors; trayaḥ—three; hi—certainly; asya—of this one; gṛhṇataḥ—who is manifesting; anu-yugam—according to the age; tanūḥ—bodies; śuklaḥ—white; raktaḥ—red; tathā—thus; pītaḥ—yellow; idānīm—now; kṛṣṇatām—blackness; gataḥ—obtained.
“This boy [Kṛṣṇa] has three other colors—white, red and yellow—as He appears in different ages. Now He has appeared in a transcendental blackish color.”
This is a verse from Śrīmad-Bhāgavatam (SB 10.8.13).