Mountain Pass vs Slate Tile
Mountain Pass and Slate Tile come from the same Sherwin-Williams collection. These are both blue-greys, so the question isn't which hue to choose — it's where within blue-grey to land. Their light reflectance values are nearly the same — 14 vs 15 — so neither will read significantly brighter or darker than the other. Where Mountain Pass leans neutral, Slate Tile reads cool — a distinction that shifts noticeably depending on the light source and surrounding finishes. ΔE 4.0 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 Slate Tile in Real Spaces
2 real rooms side by side. Mountain Pass and Slate Tile 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. Slate Tile brings more warmth to the space, while Mountain Pass keeps things cooler and crisper.
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. Mountain Pass reads more restrained here, while Slate Tile adds a sense of enclosure and warmth.
Color Details
Mountain Pass vs Slate Tile Simulated Comparison
5 simulated room previews — drag the slider on each to see Mountain Pass on one side and Slate Tile 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.