What is the name of the coat color of a dog that is white with black spots? - briefly
The coat color pattern you're describing is called "Merle." This term is commonly used to describe a gene that causes patches of color dilution in dogs, resulting in a mottled appearance often seen on white coats with black spots.
What is the name of the coat color of a dog that is white with black spots? - in detail
The coat color pattern of a dog that is predominantly white with black spots is typically referred to as "Harlequin." This distinctive coloration is characterized by a base color of white, which covers most of the dog's body, with patches or spots of black. The Harlequin pattern is often associated with breeds such as Great Danes and Beaucerons, where it is considered a classic and recognizable feature of their appearance. This coat coloration is genetically determined and results from a specific combination of genes that control the distribution and expression of pigment in the dog's fur.