Nightfall Sky vs Grey Blue
Nightfall Sky (Benjamin Moore) and Grey Blue (RAL Classic) come from different manufacturers. Nightfall Sky reads as grey, while Grey Blue reads as blue-grey — two distinct hue families, not close cousins. The 8-point LRV gap — 15 for Nightfall Sky vs 7 for Grey Blue — means Nightfall Sky will open up a space more effectively. A ΔE of 14.7 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Nightfall Sky vs Grey Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Nightfall Sky on one side and Grey Blue on the other.
Digital color is approximate. These simulations are generated from the manufacturer's hex values and overlaid on grayscale room photos — your screen's calibration, brightness, and viewing angle all affect how they render. Before committing to either color, test physical samples in your own space under the light you actually live with.
More Nightfall Sky comparisons
See how Nightfall Sky stacks up against other well-photographed colors across different brands and tones.
