Smokestack Gray vs S 5010-R90B
Smokestack Gray (Benjamin Moore) and S 5010-R90B (NCS) come from different manufacturers. Both sit in the blue-grey family, which is useful context if you're narrowing within a single hue direction. The 3-point LRV gap — 23 for Smokestack Gray vs 19 for S 5010-R90B — means Smokestack Gray will open up a space more effectively. Where Smokestack Gray leans blue, S 5010-R90B reads cool — a distinction that shifts noticeably depending on the light source and surrounding finishes. ΔE 4.4 means they're clearly different, but not dramatically so — they'd pair well in the same room. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Smokestack Gray vs S 5010-R90B Simulated Comparison
5 simulated room previews — drag the slider on each to see Smokestack Gray on one side and S 5010-R90B 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 Smokestack Gray comparisons
See how Smokestack Gray stacks up against other well-photographed colors across different brands and tones.
