Smokestack Gray vs Grey Splendor

Smokestack GrayBenjamin MoorevsGrey SplendorDuluxΔE 4.4Noticeable difference

Smokestack Gray (Benjamin Moore) and Grey Splendor (Dulux) come from different manufacturers. 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 — 23 vs 21 — so neither will read significantly brighter or darker than the other. Where Smokestack Gray leans blue, Grey Splendor reads neutral — a distinction that shifts noticeably depending on the light source and surrounding finishes. ΔE 4.4 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.

Smokestack Gray vs Grey Splendor in Real Spaces

2 real rooms side by side. Smokestack Gray and Grey Splendor 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.

Bedroom

Bedrooms are typically lit with warmer, lower light than the rest of the house — a condition that flatters warm tones and deepens cool ones. Smokestack Gray reads more restrained here, while Grey Splendor adds a sense of enclosure and warmth.

Smokestack GrayBenjamin Moore Smokestack Gray bedroom paint

@americanopaint

Grey SplendorDulux Grey Splendor bedroom color

@property_rejuvenate

Kitchen Cabinets

Cabinet color is always seen in context — against countertops, backsplash, and hardware — which amplifies undertone differences that might disappear on a plain wall. Smokestack Gray reads more restrained here, while Grey Splendor adds a sense of enclosure and warmth.

Smokestack GrayBenjamin Moore Smokestack Gray kitchen cabinets

@unitedcabinets

Grey SplendorDulux Grey Splendor kitchen cabinets review

@ascotbespokekitchens

Color Details

Smokestack Gray
Benjamin Moore · 2131-40
Hex#728287
LRV22.8
BrandBenjamin Moore
Number2131-40
UndertoneBlue
TemperatureCool
BrightnessDark
Grey Splendor
Dulux · 30BB 21/056
Hex#737B84
LRV21.0
BrandDulux
Number30BB 21/056
Undertone
TemperatureNeutral
BrightnessDark

Smokestack Gray vs Grey Splendor Simulated Comparison

5 simulated room previews — drag the slider on each to see Smokestack Gray on one side and Grey Splendor 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 Smokestack Gray comparisons

See how Smokestack Gray stacks up against other well-photographed colors across different brands and tones.

White Dove
Smokestack Gray
White Dove
Benjamin Moore
White Dove
LRV 83

White Dove is the lighter choice

Ammonite
Smokestack Gray
Ammonite
Farrow & Ball
Ammonite
LRV 69

Ammonite is the lighter choice

Iron Ore
Smokestack Gray
Iron Ore
Sherwin-Williams
Iron Ore
LRV 6

Smokestack Gray reads noticeably lighter

Purbeck Stone
Smokestack Gray
Purbeck Stone
Farrow & Ball
Purbeck Stone
LRV 52

Purbeck Stone is the lighter choice

Evergreen Fog
Smokestack Gray
Evergreen Fog
Sherwin-Williams
Evergreen Fog
LRV 30

Evergreen Fog reads slightly lighter

Mizzle
Smokestack Gray
Mizzle
Farrow & Ball
Mizzle
LRV 52

Mizzle is the lighter choice

Agreeable Gray
Smokestack Gray
Agreeable Gray
Sherwin-Williams
Agreeable Gray
LRV 60

Agreeable Gray is the lighter choice

Denim Drift
Smokestack Gray
Denim Drift
Dulux
Denim Drift
LRV 27

Denim Drift reads slightly lighter

Tranquil Dawn
Smokestack Gray
Tranquil Dawn
Dulux
Tranquil Dawn
LRV 55

Tranquil Dawn is the lighter choice

Balboa Mist
Smokestack Gray
Balboa Mist
Benjamin Moore
Balboa Mist
LRV 66

Balboa Mist is the lighter choice

Vintage Vogue
Smokestack Gray
Vintage Vogue
Benjamin Moore
Vintage Vogue
LRV 12

Smokestack Gray reads slightly lighter

Pale Green
Smokestack Gray
Pale Green
RAL ClassicClassic
Pale Green
LRV 31

Pale Green reads slightly lighter

Pine Needle
Smokestack Gray
Pine Needle
Dulux
Pine Needle
LRV 7

Smokestack Gray reads noticeably lighter

Cement grey
Smokestack Gray
Cement grey
RAL ClassicClassic
Cement grey
LRV 24

Nearly identical in tone

Black grey
Smokestack Gray
Black grey
RAL ClassicClassic
Black grey
LRV 6

Smokestack Gray reads noticeably lighter

Piazza
Smokestack Gray
Piazza
Tikkurila
Piazza
LRV 65

Piazza is the lighter choice

Humble Yellow
Smokestack Gray
Humble Yellow
Jotun
Humble Yellow
LRV 57

Humble Yellow is the lighter choice

Windmill Lane
Smokestack Gray
Windmill Lane
Little Greene
Windmill Lane
LRV 31

Windmill Lane reads slightly lighter

Senses
Smokestack Gray
Senses
Jotun
Senses
LRV 41

Senses reads noticeably lighter

Lamp Black
Smokestack Gray
Lamp Black
Little Greene
Lamp Black
LRV 3

Smokestack Gray reads noticeably lighter

Washed Linen
Smokestack Gray
Washed Linen
Jotun
Washed Linen
LRV 55

Washed Linen is the lighter choice

Tea with Florence
Smokestack Gray
Tea with Florence
Little Greene
Tea with Florence
LRV 18

Smokestack Gray reads slightly lighter

Thames Fog
Smokestack Gray
Thames Fog
Valspar
Thames Fog
LRV 27

Thames Fog reads slightly lighter

Ocean Abyss
Smokestack Gray
Ocean Abyss
Behr
Ocean Abyss
LRV 7

Smokestack Gray reads noticeably lighter

Classic Silver
Smokestack Gray
Classic Silver
Behr
Classic Silver
LRV 48

Classic Silver is the lighter choice

Teton Blue
Smokestack Gray
Teton Blue
Behr
Teton Blue
LRV 31

Teton Blue reads slightly lighter

RAL 110-2
Smokestack Gray
RAL 110-2
RAL EffectEffect
RAL 110-2
LRV 72

RAL 110-2 is the lighter choice

RAL 110-1
Smokestack Gray
RAL 110-1
RAL EffectEffect
RAL 110-1
LRV 80

RAL 110-1 is the lighter choice

Paper
Smokestack Gray
Paper
Tikkurila
Paper
LRV 88

Paper is the lighter choice

Passageway
Smokestack Gray
Passageway
Valspar
Passageway
LRV 14

Smokestack Gray reads slightly lighter