'Black' in the Bible

Neither shall you swear by your head, for you can't make one hair white or black.

When he opened the third seal, I heard the third living creature saying, "Come and see!" And behold, a black horse, and he who sat on it had a balance in his hand.

I saw when he opened the sixth seal, and there was a great earthquake. The sun became black as sackcloth made of hair, and the whole moon became as blood.