Revelation 6:2-6

Then I saw a white horse, and its rider carried a bow. He was given a crown, and he rode forth as a victor to conquer.

Revelation 12:3

Another portent appeared in the sky??here was a great fire-red dragon with seven heads and ten horns, with seven diadems on his heads.

Revelation 17:3

So he carried me away in a trance to a desert, and I saw a woman seated on a scarlet animal all covered with blasphemous titles; it 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 saw a white horse, and its rider carried a bow. He was given a crown, and he rode forth as a victor to conquer.
Revelation 12:3
Another portent appeared in the sky??here was a great fire-red dragon with seven heads and ten horns, with seven diadems on his heads.
Revelation 17:3
So he carried me away in a trance to a desert, and I saw a woman seated on a scarlet animal all covered with blasphemous titles; it had seven heads and ten horns.

Black

Revelation 6:5
When he broke the third seal, I heard the third animal say, "Come!" And there I saw a black horse, and its rider had a pair of scales in his hand,