What color is associated with horses that have a body color of reddish brown with a lighter mane and tail?

The color associated with horses that have a body color of reddish brown complemented by a lighter mane and tail is chestnut. Chestnut horses come in various shades, but they generally have a warm, reddish hue to their body, which distinguishes them from other color types. The lighter mane and tail, often a golden or flaxen color, are a common feature among many chestnuts, providing a striking contrast that enhances their overall appearance.

In contrast, bay horses have a brown body with black points (mane, tail, and lower legs), which would not align with the description provided in the question. Pinto refers to a horse that has a coat with large patches of white and another color, which again does not fit the characteristic of a reddish brown body. Liver, or liver chestnut, is a specific shade of chestnut that is darker in color, but the question refers to a lighter mane and tail that is more indicative of a standard chestnut rather than a liver chestnut. Therefore, the description clearly points to chestnut as the correct color.