Limestone vs Porpoise

Both are Sherwin-Williams colors. Hue-wise, Limestone belongs to the grey family and Porpoise to the greige-grey family. With LRVs of 13 and 13, they'll behave almost identically in terms of how much light they reflect back into a room. The tonal difference — Limestone's neutral character against Porpoise's warm — becomes most visible against white trim or in morning light. With a ΔE of 0.9, the difference is subtle — you'd need them side by side to reliably tell them apart. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.