White Horse

Then I saw when the Lamb broke one of the seven seals, and I heard one of the four living creatures saying as with a voice of thunder, "Come." I looked, and behold, a white horse, and he who sat on it had a bow; and a crown was given to him, and he went out conquering and to conquer.

 

Red Horse

When He broke the second seal, I heard the second living creature saying, "Come." And another, a red horse, went out; and to him who sat on it, it was granted to take peace from Earth, and that men would slay one another; and a great sword was given to him.

 

Black Horse

When He broke the third seal, I heard the third living creature saying, "Come." I looked, and behold, a black horse; and he who sat on it had a pair of scales in his hand. And I heard something like a voice in the center of the four living creatures saying, "A quart of wheat for a denarius, and three quarts of barley for a denarius; but do not damage the oil and the wine."

 

Pale Horse

When the Lamb broke the fourth seal, I heard the voice of the fourth living creature saying, "Come." I looked, and behold, a pale horse; and he who sat on it had the name Death; and Hades was following with him. Authority was given to them over a fourth of the Earth, to kill with sword and with famine and with pestilence and by the wild beasts of the Earth.

 

(From https://en.wikipedia.org/wiki/Four_Horsemen_of_the_Apocalypse)