Cos Cob Stonewall vs S 4500-N
Cos Cob Stonewall (Benjamin Moore) and S 4500-N (NCS) come from different manufacturers. These are both greys, so the question isn't which hue to choose — it's where within grey to land. Their light reflectance values are nearly the same — 26 vs 27 — so neither will read significantly brighter or darker than the other. Where Cos Cob Stonewall leans green, S 4500-N reads neutral — a distinction that shifts noticeably depending on the light source and surrounding finishes. ΔE 4.5 means they're clearly different, but not dramatically so — they'd pair well in the same room. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Cos Cob Stonewall vs S 4500-N in Real Spaces
1 real room side by side. Cos Cob Stonewall and S 4500-N are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
Bathroom
Small bathrooms intensify color. A shade that seems quiet in a larger room can feel immersive when you're surrounded by it on four walls. At this scale, the choice between them becomes clear in a way that a swatch alone can't communicate.
Color Details
Cos Cob Stonewall vs S 4500-N Simulated Comparison
5 simulated room previews — drag the slider on each to see Cos Cob Stonewall on one side and S 4500-N 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 Cos Cob Stonewall comparisons
See how Cos Cob Stonewall stacks up against other well-photographed colors across different brands and tones.
