'Brindle' refers to dark stripes over a solid background—usually red. If a dachshund is brindled on a dark coat and has tan points, it will have brindling on the tan points only. Even one single, lone stripe of brindle is a brindle. Light-colored dachshunds can sport amber, light brown, or green eyes; however, kennel club standards state that the darker the eye color, the better. Dapple and double dapple dachshunds can have multi-coloured “wall” eyes with fully blue, partially blue or patched irises due to the effect of the dapple gene on eye pigmentation expression.