What is the definition of 'harlequin' in dog color patterns?

The term "harlequin" in dog color patterns specifically refers to a patched or pied discoloration, characterized by a base color (often white) interspersed with irregular patches of another color, typically black. This distinct and striking pattern creates a unique appearance that is easily recognizable in breeds that exhibit the harlequin color, such as the Great Dane.

The harlequin pattern stands in contrast to solid colors and other variations such as brindle or merle, which involve a more uniform distribution of color or different markings. The definition encompasses the essence of how these colors and patterns interact on the dog's coat, making it an important concept in understanding canine color genetics and appearance.