Strong's Concordance G3189

Mat 5:36  Neither shalt thou swear by thy head, because thou canst not make one hair white or blackG3189.

Rev 6:5  And when he had opened the third seal, I heard the third beast say, Come and see. And I beheld, and lo a blackG3189 horse; and he that sat on him had a pair of balances in his hand.

Rev 6:12  And I beheld when he had opened the sixth seal, and, lo, there was a great earthquake; and the sun became blackG3189 as sackcloth of hair, and the moon became as blood;