The tort otter is not currently an accepted color in any breed.  It is however, often mistaken for orange or fawn especially when blue or chocolate based.  In cases where there is obvious tort shading the rabbit should be disqualified for incorrect variety (tan pattern tortoise).

Tort Otter (aka Fox, Tort Marten) brown eyes: at_ B_ C_ D_ ee at_ bb C_ D_ ee blue-gray eyes: at_ B_ C_ dd ee at_ bb C_ dd ee (May also be wideband ww)

Netherland Dwarf Photos Courtesy Of: Ted McBride

Holland Lop Photo courtesy of: Lazy Susan Rabbitry

Holland Lop Above photo showing tan pattern markings. Photo courtesy of: Lazy Susan Rabbitry

Lionhead Photo Courtesy Of: Buffalo Creek Farms

Tort Otter Jersey Wooly (above & below)