Limestone vs Sea Mariner

Limestone and Sea Mariner come from the same Sherwin-Williams collection. Hue-wise, Limestone belongs to the grey family and Sea Mariner to the blue-grey family. The 6-point LRV gap — 13 for Limestone vs 7 for Sea Mariner — means Limestone will open up a space more effectively. Where Limestone leans neutral, Sea Mariner reads cool — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 17.3 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.