Blue Iris vs Mercurial

Both from Sherwin-Williams's palette. Hue-wise, Blue Iris belongs to the blue-grey family and Mercurial to the greige-grey family. Blue Iris (LRV 73) reflects noticeably more light than Mercurial (LRV 61), a difference of 12 points that becomes especially apparent in rooms with limited natural light. Blue Iris runs neutral while Mercurial is decidedly warm, which means they'll respond very differently to warm vs cool light sources. The ΔE 7.8 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.