Revelation 6:2-6

Then I looked, and a white horse appeared, and his rider was carrying a bow. A crown was given to him, and he rode forth conquering and to conquer.

Revelation 12:3

Another symbol was seen in heaven -- there was a huge dragon, red as fire, with seven heads and ten horns, with seven diadems on his heads.

Revelation 17:3

So he carried me away in spiritual rapture to a desert, and I saw a woman seated on a scarlet wild beast, covered with blasphemous titles; he had seven heads and ten horns.

Treasury of Scripture Knowledge

Summary

In the first chariot were red horses; and in the second chariot black horses;

Bible References

Red

Revelation 6:2
Then I looked, and a white horse appeared, and his rider was carrying a bow. A crown was given to him, and he rode forth conquering and to conquer.
Revelation 12:3
Another symbol was seen in heaven -- there was a huge dragon, red as fire, with seven heads and ten horns, with seven diadems on his heads.
Revelation 17:3
So he carried me away in spiritual rapture to a desert, and I saw a woman seated on a scarlet wild beast, covered with blasphemous titles; he had seven heads and ten horns.

Black

Revelation 6:5
When He broke the third seal, I heard the third living creature, say, "Come!" I looked, and a black horse appeared, and its rider was carrying a pair of scales in his hands,