Shadow Mountain vs Pewter Green
Where Shadow Mountain belongs to Behr's range, Pewter Green is a Sherwin-Williams color. Hue-wise, Shadow Mountain belongs to the grey family and Pewter Green to the green-grey family. They have nearly identical light reflectance values (10 vs 12), so they'll read as similarly Dark in most lighting conditions. Shadow Mountain runs red while Pewter Green is decidedly neutral, which means they'll respond very differently to warm vs cool light sources. The ΔE 6.7 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Shadow Mountain vs Pewter Green in Real Spaces
2 real rooms side by side. Shadow Mountain 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.
Dining Room
A dining room lit by a dimmed pendant or candles is one of the most forgiving environments for paint — warm light softens almost everything. At this scale, the choice between them becomes clear in a way that a swatch alone can't communicate.
House
Seen across an entire facade, subtle tonal differences become pronounced. What reads as nearly the same on a chip often reads as clearly different at scale. The distinction reads clearly at room scale, making the choice between them concrete.
Color Details
Shadow Mountain vs Pewter Green Simulated Comparison
5 simulated room previews — drag the slider on each to see Shadow Mountain 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 Shadow Mountain comparisons
See how Shadow Mountain stacks up against other well-photographed colors across different brands and tones.
