Amethyst Shadow vs Nightfall Sky

Both from Benjamin Moore's palette. Amethyst Shadow reads as blue-grey, while Nightfall Sky reads as grey — two distinct hue families, not close cousins. Amethyst Shadow (LRV 18) reflects noticeably more light than Nightfall Sky (LRV 15), a difference of 3 points that becomes especially apparent in rooms with limited natural light. Amethyst Shadow runs blue while Nightfall Sky is decidedly purple, which means they'll respond very differently to warm vs cool light sources. The ΔE 6.4 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.