1. Blue: This is the primary color of the coat and is a dilute form of black, resulting from a gene that reduces the amount of black pigment. It can range from a light silvery-blue to a deep slate blue.
2. White: Blue Merles have white markings on their coat, which can vary in size and distribution. These white markings are often found on the face, chest, legs, and belly, creating a contrasting effect with the blue merle color.
3. Tan: Tan points are another characteristic feature of Blue Merle Australian Shepherds. They can range from a light cream to a deep copper or red color. Tan points are typically found on the eyebrows, cheeks, legs, and underside of the tail.
4. Black: In some Blue Merle Australian Shepherds, black hairs may be present, especially around the eyes, ears, and muzzle. These black markings enhance the overall depth and contrast of the coat pattern.
5. Red Merle: While not a separate color in Blue Merle Australian Shepherds, the term "Red Merle" refers to a variation of the Blue Merle pattern, where the blue color is replaced by red. Red Merle Australian Shepherds have a reddish-brown or copper base color with white and tan markings.
It is important to note that the coat patterns and colors of Australian Shepherds can vary within the breed, and not all Blue Merle Australian Shepherds will exhibit exactly the same color combinations.
