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Grulla (pronounced "grew-yah," and also spelled grullo) is a slate or slate-brown color with black points and primitive markings (dorsal stripe, leg stripes, etc.). The horse also has a black face. Grulla is black diluted by the D gene, or aaD-E-. Unlike a grey or roan horse, the hairs of a grulla are all individually slate-colored. Greys and roans have colored hairs intermixed with white hairs.
Grulla comes in many shades, some light, some dark, some silvery, some olive-colored. All have black points, black masks, and primitive markings.
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Above and below: Grulla foals. Like all foal colors, the foal coat of a grulla is subject to sunbleaching, turning it a rusty color. |
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Above and at left: Grulla mares with dun foals |
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Grulla foals showing great primitive markings, including prominent stripes over their withers:
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The two horses below are a shade of grulla called olive grulla. They look somewhat like dark duns, but can be differentiated from duns by their black faces; duns have dun-colored faces.
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