Prelude vs Sea Mariner

Prelude and Sea Mariner come from the same Sherwin-Williams collection. Prelude reads as grey, while Sea Mariner reads as blue-grey — two distinct hue families, not close cousins. The 3-point LRV gap — 9 for Prelude vs 7 for Sea Mariner — means Prelude will open up a space more effectively. Where Prelude leans neutral, Sea Mariner reads cool — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 13.0 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.