Ambler Slate vs Pewter Green
Ambler Slate (Benjamin Moore) and Pewter Green (Sherwin-Williams) come from different manufacturers. Ambler Slate reads as grey, while Pewter Green reads as green-grey — two distinct hue families, not close cousins. Their light reflectance values are nearly the same — 12 vs 12 — so neither will read significantly brighter or darker than the other. Where Ambler Slate leans blue, Pewter Green reads neutral — a distinction that shifts noticeably depending on the light source and surrounding finishes. ΔE 6.9 means they're clearly different, but not dramatically so — they'd pair well in the same room. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Ambler Slate vs Pewter Green in Real Spaces
2 real rooms side by side. Ambler Slate and Pewter Green 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.
House
A full exterior is the most demanding test for a paint color — scale and outdoor light both amplify differences that seem small on a swatch. At this scale, the choice between them becomes clear in a way that a swatch alone can't communicate.
Front Door
On a front door, the color is both the first and last thing you see — a context where even a modest tonal difference reads clearly. The distinction reads clearly at room scale, making the choice between them concrete.
Color Details
Ambler Slate vs Pewter Green Simulated Comparison
5 simulated room previews — drag the slider on each to see Ambler Slate on one side and Pewter Green 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 Ambler Slate comparisons
See how Ambler Slate stacks up against other well-photographed colors across different brands and tones.
