Cloudy Sky vs Gibraltar Cliffs

Both from Benjamin Moore's palette. Both sit in the blue-grey family, which is useful context if you're narrowing within a single hue direction. They have nearly identical light reflectance values (33 vs 32), so they'll read as similarly Medium in most lighting conditions. Both lean blue, so they'll behave similarly in mixed or changing light conditions. At ΔE 2.0, these are close — the kind of difference that matters when choosing between them, but doesn't read strongly in a finished room. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.