Nantucket Dune vs Sea Mariner

Nantucket Dune and Sea Mariner come from the same Sherwin-Williams collection. Hue-wise, Nantucket Dune belongs to the beige family and Sea Mariner to the blue-grey family. The 47-point LRV gap — 54 for Nantucket Dune vs 7 for Sea Mariner — means Nantucket Dune will open up a space more effectively. Where Nantucket Dune leans warm, Sea Mariner reads cool — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 51.1 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.