Halcyon Green vs Marine

Both are Sherwin-Williams colors. Both sit in the green-grey family, which is useful context if you're narrowing within a single hue direction. With LRVs of 38 and 36, they'll behave almost identically in terms of how much light they reflect back into a room. They share a cool quality — useful to know if you're layering them in the same space. With a ΔE of 2.2, 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.