Iron Mountain vs Lamp Black

Iron MountainBenjamin MoorevsLamp BlackLittle GreeneΔE 17.8Distinct difference

Where Iron Mountain belongs to Benjamin Moore's range, Lamp Black is a Little Greene color. These are both greys, so the question isn't which hue to choose — it's where within grey to land. Iron Mountain (LRV 11) reflects noticeably more light than Lamp Black (LRV 3), a difference of 8 points that becomes especially apparent in rooms with limited natural light. Iron Mountain runs red while Lamp Black is decidedly purple, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 17.8, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.

Color Details

Iron Mountain
Benjamin Moore · 2134-30
Hex#575553
LRV11.0
BrandBenjamin Moore
Number2134-30
UndertoneRed
TemperatureNeutral
BrightnessDark
Lamp Black
Little Greene · 228
Hex#2e2d2e
LRV2.7
BrandLittle Greene
Number228
UndertonePurple
TemperatureNeutral
BrightnessDark

Iron Mountain vs Lamp Black Simulated Comparison

5 simulated room previews — drag the slider on each to see Iron Mountain on one side and Lamp Black 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 Iron Mountain comparisons

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

White Dove
Iron Mountain
White Dove
Benjamin Moore
White Dove
LRV 83

White Dove is the lighter choice

Ammonite
Iron Mountain
Ammonite
Farrow & Ball
Ammonite
LRV 69

Ammonite is the lighter choice

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

Iron Mountain reads slightly lighter

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

Purbeck Stone is the lighter choice

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

Evergreen Fog reads noticeably lighter

Mizzle
Iron Mountain
Mizzle
Farrow & Ball
Mizzle
LRV 52

Mizzle is the lighter choice

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

Agreeable Gray is the lighter choice

Denim Drift
Iron Mountain
Denim Drift
Dulux
Denim Drift
LRV 27

Denim Drift reads noticeably lighter

Tranquil Dawn
Iron Mountain
Tranquil Dawn
Dulux
Tranquil Dawn
LRV 55

Tranquil Dawn is the lighter choice

Balboa Mist
Iron Mountain
Balboa Mist
Benjamin Moore
Balboa Mist
LRV 66

Balboa Mist is the lighter choice

Vintage Vogue
Iron Mountain
Vintage Vogue
Benjamin Moore
Vintage Vogue
LRV 12

Nearly identical in tone

Pale Green
Iron Mountain
Pale Green
RAL ClassicClassic
Pale Green
LRV 31

Pale Green reads noticeably lighter

Pine Needle
Iron Mountain
Pine Needle
Dulux
Pine Needle
LRV 7

Iron Mountain reads slightly lighter

Cement grey
Iron Mountain
Cement grey
RAL ClassicClassic
Cement grey
LRV 24

Cement grey reads noticeably lighter

Black grey
Iron Mountain
Black grey
RAL ClassicClassic
Black grey
LRV 6

Iron Mountain reads slightly lighter

Piazza
Iron Mountain
Piazza
Tikkurila
Piazza
LRV 65

Piazza is the lighter choice

Humble Yellow
Iron Mountain
Humble Yellow
Jotun
Humble Yellow
LRV 57

Humble Yellow is the lighter choice

Windmill Lane
Iron Mountain
Windmill Lane
Little Greene
Windmill Lane
LRV 31

Windmill Lane reads noticeably lighter

Senses
Iron Mountain
Senses
Jotun
Senses
LRV 41

Senses is the lighter choice

Washed Linen
Iron Mountain
Washed Linen
Jotun
Washed Linen
LRV 55

Washed Linen is the lighter choice

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

Tea with Florence reads slightly lighter

Thames Fog
Iron Mountain
Thames Fog
Valspar
Thames Fog
LRV 27

Thames Fog reads noticeably lighter

Ocean Abyss
Iron Mountain
Ocean Abyss
Behr
Ocean Abyss
LRV 7

Iron Mountain reads slightly lighter

Obsidian Green
Iron Mountain
Obsidian Green
Little Greene
Obsidian Green
LRV 1

Iron Mountain reads slightly lighter

Classic Silver
Iron Mountain
Classic Silver
Behr
Classic Silver
LRV 48

Classic Silver is the lighter choice

Teton Blue
Iron Mountain
Teton Blue
Behr
Teton Blue
LRV 31

Teton Blue reads noticeably lighter

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

RAL 110-2 is the lighter choice

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

RAL 110-1 is the lighter choice

Paper
Iron Mountain
Paper
Tikkurila
Paper
LRV 88

Paper is the lighter choice

Passageway
Iron Mountain
Passageway
Valspar
Passageway
LRV 14

Passageway reads slightly lighter