Shit-brindle

Eliza and Charles had to show him how the perfected blue-dyed yarn could be colored green by scalding in yellow dye made out of rabbit-brush blossoms or wild greasewood; black dye could be made from logwood and copperas vitriol; dark brown from the walnuts Brother Hamblin was raising in Santa Clara; olive green from the creosote leaves, and 'shit-brindle' from wild sage.

Source: wiktionary

1995, "One-Eyed Jack" as found in Resurrection and Reclamation: The Collected Works of S. Darnbrook Colson compiled and edited by Elrod Stanton The walls of the "game room," as we called it, were shit-brindle yellow. We could never get Bennuci to repaint the damned thing. Said he liked the color. Said it reminded him of his bedroom when he was a boy. We always made joked about what the rest of his house must've looked like: Baby puke green, Menstruation red, and so on.

Source: wiktionary

Ain't nothing bright about it but its namesake, even the birds are a shit-brindle-brown streaked with a dusty-ochre.

Source: wiktionary

But the best part was that he'd nailed it: the color Sonja chose for that psycho-chromatic study was a most disturbing combination of brown, rust, and mustard--it was a slightly metallic dark-gold puke color, basically. No, it was shit brindle to a T. Genius […]

Source: wiktionary