Classic Grullos are black horses with at least one Dun gene and at least one Champagne gene, giving them a pale coat that is extra shiny with faint Dun markings.
| Genetic Panel | ||||||
| Extension | Agouti | Grey | Cream/Pearl | Dun | Silver | Champagne |
| E/e or E/E | a/a | n/n | n/n | D/n or D/D | n/n | Ch/n or Ch/Ch |
| Shades | |
| Foal | |
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| Classic Grullo | |
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Base Color
Variants