Horse color guide

Grullo Horse Color Guide

A grullo horse is usually a black-based horse affected by the dun gene, creating a smoky gray, mouse-colored, or blue-gray body with primitive markings.

Quick answer: Look for a dorsal stripe, leg barring, darker points, shoulder shading, and a muted gray or mouse-colored body. Grullo and grulla describe the same color family in common barn use.

What to look for

• Base color: black base coat plus dun dilution.
• Primitive markings: dorsal stripe, leg barring, shoulder shadowing, and darker points.
• Lookalikes: blue roans, faded blacks, smoky blacks, and young grays can be mistaken for grullo.

Do not stop at color

A standout coat does not tell you whether the horse is comfortable, conditioned, or well managed. Look at feet, skin, hydration, workload, and how the horse recovers after hauling, turnout, or work.

Care path

• ShowBarn Secret® Grooming for coat, mane, tail, and show-barn finish work.
• Citraquin® Environmental Defense Spray for warm-weather turnout and barn environmental pressure.
• Solution Finder when the real issue is stiffness, skin, hoof, travel, or not sure.