Colour
The body of colour Thoroughbred racehorses can be described as:
Black
Coat, limbs, mane and tail are predominantly black.
Brown
A mixture of black and brown in the coat. Black limbs, mane and tail.
Bay/Brown
Coat is mainly brown with a bay muzzle. Black limbs, mane and tail.
Bay
Any shade of brown between bay/brown and chesnut. A bay's limbs, mane and tail are always black however.
Chesnut
Various shades of yellow/ginger hair on the body, ranging from an intense red-yellow through to a subtler golden yellow. Mane, limbs and tail may be any shade of coat colour or flaxen.
Grey
A mixture of black and white hair all over.
Roan
A mixture of red and white, or brown and white. Limbs, mane and tail may be black, roan or chesnut.