The Rigveda (one of the earliest written documents in the world) repeatedly refers to Indra as yellow haired and beard, and speaks of him fighting what are called the "dark and swarthy adversaries", to force them to bow to law and order, and "preserve the Aryan colour", among several other passages that would be deemed so 'racist' in the modern atmosphere.
https://en.m.wikipedia.org/wiki/Rigveda