This is a discussion on Another "Brown or Black?" question within the Horse Colors and Genetics forums, part of the Horse Breeds, Breeding, and Genetics category
I would say brown too. This has been confusing for me too since everyone refers to my mare as black and white. I'm thinking because of the lighter brown on the muzzle and flanks etc.
I'll throw another color option in, black chestnut, although I agree this horse is most likely a brown.
Also, the coat could be darker depending on turn out. Horses turned out only at night during summer months do not get sunbleached.
I owned a mare that was registered chestnut, had to do a color change after she had three bay foals by three different chestnut stallions.
She was actually black if I only turned her out at night.
Smarties, if the horse was a black or liver chestnut, then she would be lighter right along the coronet band. Even the darkest chestnut will be clearly red-ish along the coronet bands.
For example....this horse is genetically red, though he looks black. However, you can see the obvious red hair on his lower legs, especially pasterns and coronet bands.
Brown. The unofficial "official" way to tell is the brown hairs on her muzzle.
Ah - but not always! In my other thread I questioned if my black mutang may be brown because now in the winter he was showing brown hairs on his muzzle. And most felt he was black because while there was some brown on the muzzle and lighter brown on his tail his other soft tissue areas really were not lightened. So looks like I have one of each.
Now I do have another question. We know how the smutty/sooty gene can even make palominos look really dark. I wonder what it would do to a brown with it? And have they decided mealy does not work on black-based horses? I know they used to say what is now brown were blacks with mealy.