Perfect Periwinkle vs Rarified Air

Both from Sherwin-Williams's palette. Perfect Periwinkle reads as blue, while Rarified Air reads as blue-white — two distinct hue families, not close cousins. Rarified Air (LRV 78) reflects noticeably more light than Perfect Periwinkle (LRV 23), a difference of 55 points that becomes especially apparent in rooms with limited natural light. Both lean cool, so they'll behave similarly in mixed or changing light conditions. With a ΔE of 43.5, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.