Sherwin Williams Endless Sea SW 9150

Sherwin Williams Endless Sea SW 9150 is a deep blue with a noticeable slate-gray cast and a restrained hint of teal. Its medium-dark depth gives walls definition without reading as nearly black, especially in rooms with good natural light. In bright daylight, this shade can appear cleaner and slightly cooler; under warm evening bulbs, its gray-blue character becomes more pronounced. Endless Sea suits offices, dining rooms, powder rooms, and built-in cabinetry, where its grounded color can anchor pale wood and light stone. Pair it with soft off-whites, weathered oak, brushed brass, or muted clay accents for contrast that feels considered rather than overly crisp.