Gray – Horses with a dark coat and white to gray hair. They can
often appear as white horses but if their points are dark they are considered
grays.
Grullo – This is from a dun gene on a black horse. A dark
dorsal strip, dark points, and dark legs. They can also have stripes on the
legs, forward, back, etc.
Pearl – A horse with a red base coat lightened to an almost
apricot color, the mane and tail will also be light.
Amber Champagne -
Gold coat with chocolate points. Can be confused with buckskin or bay dun. The
mane and tail have light edges. This gene dilutes the color of a bay horse.
Brindle – A faint, small tiger striping pattern on a horse.
This is quite rare.
Liver Chestnut – Very dark chestnut (reddish-brown) color.
Sorrel – A light chestnut (reddish-brown) color. The mane
and tail will be the same color or lighter.
(*Please note, these are not my pictures.)