Dilutions in horses "dilute" the base color of the horse making the horse appear lighter in color. Some, as with homozygous cream, can make the horse appear very nearly white. Some dilutions affect black pigment, other affect red and some affect both red and black pigment. A horse can carry and express more than one dilution and at times it can be difficult to distinguish different dilutions with similar expressions. The dilutions in horses are Cream, Dun, Champagne, Pearl and Silver