Does chair rail have to match baseboards?

A chair rail does not strictly have to match your baseboards, but maintaining coordination in color, finish, or architectural style is a widely accepted design principle that creates a cohesive and polished look. In traditional and transitional interiors, designers typically match the chair rail, baseboards, crown molding, and door casings in both profile style and paint color—often using a crisp, semi-gloss white—to establish a unified trim package throughout the home. However, in modern or eclectic design schemes, you can intentionally mismatch them, such as pairing natural wood-stained baseboards with a painted chair rail, or painting the chair rail the same color as the wall while keeping baseboards white. The key is ensuring that whatever combination you choose feels intentional and harmonizes with the overarching design vocabulary of the room.