Pangare: The Phenotype

Pangare (or the more informal "mealy") is a dilution allele that lightens hair around the muzzle, eyes, and underpart of a horse's body (these areas can also extend outward or upward). Do take note that using ill-fitting tack on a horse can also leave whiter areas (see first picture), but this doesn't have any to do with genetics. The Fjord, Belgian, and Haflinger breeds very commonly have pangare horses if you take a look.

It's generally easier to notice pangare on a long-haired rather than a short-haired horse. This allele on a chestnut base may also be called a "Belgian sorrel". Another term involved with pangare is "foal pangare"; this is the color some foals (which are not carrying the mealy allele) look previous to shedding their foal coat.

Here is a picture of Ben, a chestnut pangare Belgian, and below that is a picture of Cayenne, a chestnut-based foal pangare.

Ben the Belgian. And no, the whiter areas on the topside of his body are not due to the Pangare allele.

Foal pangare on Cayenne. Some of the lightest areas are caused by the sabino allele he carries (you can see the outline of his hind stocking, for example), but he still has pale areas that resemble pangare.