Brewster Gray vs S 4010-B70G
Where Brewster Gray belongs to Benjamin Moore's range, S 4010-B70G is a NCS color. These are both blue-greys, so the question isn't which hue to choose — it's where within blue-grey to land. They have nearly identical light reflectance values (30 vs 28), so they'll read as similarly Medium in most lighting conditions. Brewster Gray runs blue while S 4010-B70G is decidedly cool, which means they'll respond very differently to warm vs cool light sources. The ΔE 3.5 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Brewster Gray vs S 4010-B70G in Real Spaces
1 real room side by side. Brewster Gray and S 4010-B70G 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.
Living Room
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. The temperature contrast between S 4010-B70G and Brewster Gray is what sets these apart most in this context.
Color Details
Brewster Gray vs S 4010-B70G Simulated Comparison
5 simulated room previews — drag the slider on each to see Brewster Gray on one side and S 4010-B70G 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 Brewster Gray comparisons
See how Brewster Gray stacks up against other well-photographed colors across different brands and tones.
