This distinctive coat pattern in canines features a dark overlay, typically black or gray, on individual hairs over a lighter base coat, often a shade of red, gold, or fawn. The result is a multi-toned appearance with a rich, almost shimmering effect as light plays on the fur. German Shepherds and Collies often exhibit this characteristic coloring.
Historically, such coats might have offered camouflage in varied terrains, potentially providing a selective advantage. Today, this patterned coat remains a highly sought-after characteristic in many breeds, prized for its aesthetic appeal and considered a hallmark of breed standards. The rich variation and depth of color add to the dog’s overall visual impact and contribute significantly to its individual character.