Mountain Pass vs Roycroft Pewter
Mountain Pass and Roycroft Pewter come from the same Sherwin-Williams collection. Mountain Pass reads as blue-grey, while Roycroft Pewter reads as grey — two distinct hue families, not close cousins. Their light reflectance values are nearly the same — 14 vs 13 — so neither will read significantly brighter or darker than the other. Both share a neutral character, which means they'll respond to light and surrounding materials in similar ways. ΔE 4.2 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.
Mountain Pass vs Roycroft Pewter in Real Spaces
2 real rooms side by side. Mountain Pass and Roycroft Pewter 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
A living room wall sees more varied light than almost any other surface in the house, which makes the choice between these two more nuanced than a chip suggests. The distinction reads clearly at room scale, making the choice between them concrete.
Home Office
Home office walls matter more than most — you're looking at them all day, and a color that reads fine at first can become tiring over time. At this scale, the choice between them becomes clear in a way that a swatch alone can't communicate.
Color Details
Mountain Pass vs Roycroft Pewter Simulated Comparison
5 simulated room previews — drag the slider on each to see Mountain Pass on one side and Roycroft Pewter 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.