There are many colors found in horses, some breeds only allow certain colors, while other breed registries do not care about color.
The main colors are as follows: Bay, Black, Chestnut (also called red/ sorrel), and Brown.
Those are the basic colors, but there are other color genetics that can modify the base color, modifiers include Cream, Pearl, Champagne, Silver, Dun, and Grey.
Then there are patterns such as Tobiano, Frame, Sabino, and Splash that give pinto patterns, The Appaloosa spotting patterns caused by the PATN and Leopard Complex genes give us spotted horses. Then there are less well known patters such as brindle, white spotting, chimeras, somatic mutations, bend or spots, birdcatcher spots, manchado spotting, and many more.
All in all you can typically find over 50 known horse colors and patterns.
Horses are different colors because different kinds of horses are naturally different in color. Some horses were also bred to be certain colors.
Tennessee Walking Horses can be nearly every color horses naturally are.
They are only black. If they have any other colors on them they cannot be registered.
sea horses can change to all of the colors of the rainbow
black white brown
brown and cream colored
all colors of horses
It's hard to say -- but people say horses can only see the colors purple, green, blue, and orange.
All horse colors can become grey.
Black, Bay, & Brown
They have no preference to particular colors.
Horses can have 2 colors, one in winter and one in summer.