Horse coat colors refer to the various shades and patterns that can be found on horses. The most common colors include bay, chestnut, black, and gray. Each color can also have different variations, such as a dark bay or a light chestnut. In addition to solid colors, horses can have unique patterns like pinto or appaloosa. These patterns often feature large patches of white or spots of color. Understanding horse coat colors is important for breeders, owners, and enthusiasts, as it can influence a horse's value and appearance in competitions.