There are four basic horse coat colors: black, chestnut, bay and brown. From these stem the wide variety of color modifications, dilutions and white patterns we see today in domestic and feral horses the world over.
Black
Chestnut
Bay
BrownThere are several genes which modify base colors, including mealy, sooty and flaxen. The can also affect other modifiers, dilutions and white patterns creating an even wider range of each coat color.
Pangare
Sooty
FlaxenThere is a number of dilutions that affect color, including dun, silver, champagne and cream. They have an effect on bases, modified colors, other dilutions and can be double diluted for more extreme expressions.
Dun
Cream
Silver
Champagne
Pearl
Mushroom
Light BlackWhite patterns can affect any color and produce some of the more spectacular horse coats, like pinto, appaloosa and roan. Some breeds are bred for their spotted patterns, while others discourage and won’t register them.
Grey
Roan
Pinto
Appaloosa
RabicanoWhite markings on the face or legs can occur in all colors and are not (always) related to a white pattern. There are also a variety of different body markings, some from spotting patterns and others simply genetics at work making nice things.
Face
Legs
Body
Rare