What are white horses called?
Although white horses are sometimes called 'albino' there are no reported cases of a true 'albino' horse.
There are also references in literature calling white horses 'albino'.
What is the rarest horse color?
The most desirable horse color is bay, followed by chestnut, dark brown, and black.
Among racehorses, there are many successful colors: bay, chestnut, and brown horses win a lot of races.
Pure white is the rarest horse color.