One verse

Srimad Bhagavatam 10.8.13

10.8.13

आसन् वर्णास्त्रयो ह्यस्य गृह्णतोऽनुयुगं तनू: । शुक्लो रक्तस्तथा पीत इदानीं कृष्णतां गत: ॥ १३ ॥

āsan varṇās trayo hy asya gṛhṇato ’nuyugaṁ tanūḥ śuklo raktas tathā pīta idānīṁ kṛṣṇatāṁ gataḥ

āsan
were assumed
varṇāḥ trayaḥ
three colors
hi
indeed
asya
of your son Kṛṣṇa
gṛhṇataḥ
accepting
anuyugam tanūḥ
transcendental bodies according to the different yugas
śuklaḥ
sometimes white
raktaḥ
sometimes red
tathā
as well as
pītaḥ
sometimes yellow
idānīm kṛṣṇatām gataḥ
at the present moment He has assumed a blackish color

Your son Kṛṣṇa appears as an incarnation in every millennium. In the past, He assumed three different colors — white, red and yellow — and now He has appeared in a blackish color. [In another Dvāpara-yuga, He appeared (as Lord Rāmacandra) in the color of śuka, a parrot. All such incarnations have now assembled in Kṛṣṇa.]