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.
More Mountain Pass comparisons
See how Mountain Pass stacks up against other well-photographed colors across different brands and tones.
White Dove reflects far more light (LRV 83 vs 14), opening up a space where Mountain Pass encloses it.
At LRV 69 vs 14, Ammonite is decisively the brighter choice.
Mountain Pass reads slightly lighter (LRV 14 vs 6), a gap that shows most in low-lit rooms.
At LRV 52 vs 14, Purbeck Stone is decisively the brighter choice.
At LRV 30 vs 14, Evergreen Fog is decisively the brighter choice.
Mizzle reflects far more light (LRV 52 vs 14), opening up a space where Mountain Pass encloses it.
At LRV 60 vs 14, Agreeable Gray is decisively the brighter choice.
Accessible Beige reflects far more light (LRV 58 vs 14), opening up a space where Mountain Pass encloses it.
Denim Drift reflects far more light (LRV 27 vs 14), opening up a space where Mountain Pass encloses it.
At LRV 43 vs 14, French Gray is decisively the brighter choice.
A 9-point LRV gap (14 vs 4) makes Mountain Pass the marginally brighter of the two.
Tranquil Dawn reflects far more light (LRV 55 vs 14), opening up a space where Mountain Pass encloses it.
With LRVs of 14 and 13, the two reflect almost the same amount of light.
Hardwick White reflects far more light (LRV 44 vs 14), opening up a space where Mountain Pass encloses it.
At LRV 84 vs 14, Pure White is decisively the brighter choice.
A 8-point LRV gap (21 vs 14) makes Artichoke the marginally brighter of the two.
Balboa Mist reflects far more light (LRV 66 vs 14), opening up a space where Mountain Pass encloses it.
Shoji White reflects far more light (LRV 74 vs 14), opening up a space where Mountain Pass encloses it.
Snowbound reflects far more light (LRV 83 vs 14), opening up a space where Mountain Pass encloses it.
With LRVs of 14 and 12, the two reflect almost the same amount of light.
Skimming Stone reflects far more light (LRV 68 vs 14), opening up a space where Mountain Pass encloses it.
At LRV 41 vs 14, Dix Blue is decisively the brighter choice.
At LRV 68 vs 14, Calamine is decisively the brighter choice.
A 11-point LRV gap (25 vs 14) makes Treron the marginally brighter of the two.
With LRVs of 14 and 12, the two reflect almost the same amount of light.
Saybrook Sage reflects far more light (LRV 45 vs 14), opening up a space where Mountain Pass encloses it.
At LRV 31 vs 14, Pale Green is decisively the brighter choice.
A 7-point LRV gap (14 vs 7) makes Mountain Pass the marginally brighter of the two.
A 11-point LRV gap (24 vs 14) makes Cement grey the marginally brighter of the two.
At LRV 57 vs 14, Guilford Green is decisively the brighter choice.