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.

Mountain PassSW 9655 cozy living room interior

@art_hoarder

Slate TileSlate Tile SW 7624 living room

@mybudgetrecipes

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.

Mountain PassSW Mountain Pass home office interior

@prettyrealblog

Slate TileSW 7624 home office inspiration

@mybudgetrecipes

Color Details

Mountain Pass
Sherwin-Williams · 9655
Hex#5C6A6A
LRV13.5
BrandSherwin-Williams
Number9655
Undertone
TemperatureNeutral
BrightnessDark
Slate Tile
Sherwin-Williams · 7624
Hex#606E74
LRV14.8
BrandSherwin-Williams
Number7624
Undertone
TemperatureCool
BrightnessDark

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.

Bathroom
Bedroom
House
Kitchen Cabinets
Living Room

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
Mountain Pass
White Dove
Benjamin Moore
White Dove
LRV 83

White Dove is the lighter choice

Ammonite
Mountain Pass
Ammonite
Farrow & Ball
Ammonite
LRV 69

Ammonite is the lighter choice

Iron Ore
Mountain Pass
Iron Ore
Sherwin-Williams
Iron Ore
LRV 6

Mountain Pass reads slightly lighter

Purbeck Stone
Mountain Pass
Purbeck Stone
Farrow & Ball
Purbeck Stone
LRV 52

Purbeck Stone is the lighter choice

Evergreen Fog
Mountain Pass
Evergreen Fog
Sherwin-Williams
Evergreen Fog
LRV 30

Evergreen Fog reads noticeably lighter

Mizzle
Mountain Pass
Mizzle
Farrow & Ball
Mizzle
LRV 52

Mizzle is the lighter choice

Agreeable Gray
Mountain Pass
Agreeable Gray
Sherwin-Williams
Agreeable Gray
LRV 60

Agreeable Gray is the lighter choice

Denim Drift
Mountain Pass
Denim Drift
Dulux
Denim Drift
LRV 27

Denim Drift reads noticeably lighter

Tranquil Dawn
Mountain Pass
Tranquil Dawn
Dulux
Tranquil Dawn
LRV 55

Tranquil Dawn is the lighter choice

Balboa Mist
Mountain Pass
Balboa Mist
Benjamin Moore
Balboa Mist
LRV 66

Balboa Mist is the lighter choice

Vintage Vogue
Mountain Pass
Vintage Vogue
Benjamin Moore
Vintage Vogue
LRV 12

Nearly identical in tone

Pale Green
Mountain Pass
Pale Green
RAL ClassicClassic
Pale Green
LRV 31

Pale Green reads noticeably lighter

Pine Needle
Mountain Pass
Pine Needle
Dulux
Pine Needle
LRV 7

Mountain Pass reads slightly lighter

Cement grey
Mountain Pass
Cement grey
RAL ClassicClassic
Cement grey
LRV 24

Cement grey reads slightly lighter

Black grey
Mountain Pass
Black grey
RAL ClassicClassic
Black grey
LRV 6

Mountain Pass reads slightly lighter

Piazza
Mountain Pass
Piazza
Tikkurila
Piazza
LRV 65

Piazza is the lighter choice

Humble Yellow
Mountain Pass
Humble Yellow
Jotun
Humble Yellow
LRV 57

Humble Yellow is the lighter choice

Windmill Lane
Mountain Pass
Windmill Lane
Little Greene
Windmill Lane
LRV 31

Windmill Lane reads noticeably lighter

Senses
Mountain Pass
Senses
Jotun
Senses
LRV 41

Senses is the lighter choice

Lamp Black
Mountain Pass
Lamp Black
Little Greene
Lamp Black
LRV 3

Mountain Pass reads slightly lighter

Washed Linen
Mountain Pass
Washed Linen
Jotun
Washed Linen
LRV 55

Washed Linen is the lighter choice

Tea with Florence
Mountain Pass
Tea with Florence
Little Greene
Tea with Florence
LRV 18

Tea with Florence reads slightly lighter

Thames Fog
Mountain Pass
Thames Fog
Valspar
Thames Fog
LRV 27

Thames Fog reads noticeably lighter

Ocean Abyss
Mountain Pass
Ocean Abyss
Behr
Ocean Abyss
LRV 7

Mountain Pass reads slightly lighter

Classic Silver
Mountain Pass
Classic Silver
Behr
Classic Silver
LRV 48

Classic Silver is the lighter choice

Teton Blue
Mountain Pass
Teton Blue
Behr
Teton Blue
LRV 31

Teton Blue reads noticeably lighter

RAL 110-2
Mountain Pass
RAL 110-2
RAL EffectEffect
RAL 110-2
LRV 72

RAL 110-2 is the lighter choice

RAL 110-1
Mountain Pass
RAL 110-1
RAL EffectEffect
RAL 110-1
LRV 80

RAL 110-1 is the lighter choice

Paper
Mountain Pass
Paper
Tikkurila
Paper
LRV 88

Paper is the lighter choice

Passageway
Mountain Pass
Passageway
Valspar
Passageway
LRV 14

Nearly identical in tone