Blue Dusk vs Cement grey
Blue Dusk (Benjamin Moore) and Cement grey (RAL Classic) come from different manufacturers. Hue-wise, Blue Dusk belongs to the blue-grey family and Cement grey to the grey family. Their light reflectance values are nearly the same — 24 vs 24 — so neither will read significantly brighter or darker than the other. A ΔE of 15.8 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Blue Dusk vs Cement grey in Real Spaces
1 real room side by side. Seeing Blue Dusk and Cement grey in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Bedroom
Bedrooms are typically lit with warmer, lower light than the rest of the house — a condition that flatters warm tones and deepens cool ones. At this scale, the choice between them becomes clear in a way that a swatch alone can't communicate.
Color Details
Blue Dusk vs Cement grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Blue Dusk on one side and Cement grey 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 Blue Dusk comparisons
See how Blue Dusk stacks up against other well-photographed colors across different brands and tones.
