Here are the accepted solid colors:
* Bay: Reddish brown body with black points (mane, tail, lower legs)
* Black: Completely black coat
* Brown: Dark brown body with brown points
* Buckskin: Golden body with black points
* Chestnut: Reddish brown body with reddish brown points
* Gray: Can range from light silver to almost black, with white hairs mixed in
* Palomino: Golden body with flaxen mane and tail (may have slight white markings)
Important Note: Though a Palomino can have slight white markings, they are not considered acceptable for registration by the Rocky Mountain Horse Association.