Mammoth Mountain vs Tranquil Dawn

Mammoth MountainBehrvsTranquil DawnDuluxΔE 40.9Very different colors

Where Mammoth Mountain belongs to Behr's range, Tranquil Dawn is a Dulux color. Mammoth Mountain reads as blue, while Tranquil Dawn reads as green-grey — two distinct hue families, not close cousins. Tranquil Dawn (LRV 55) reflects noticeably more light than Mammoth Mountain (LRV 11), a difference of 44 points that becomes especially apparent in rooms with limited natural light. Mammoth Mountain runs blue while Tranquil Dawn is decidedly neutral, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 40.9, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 5 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.

Mammoth Mountain vs Tranquil Dawn in Real Spaces

5 real rooms side by side. Seeing Mammoth Mountain and Tranquil Dawn in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.

Living Room

In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. The LRV gap is large enough that Tranquil Dawn will make the room feel meaningfully brighter than Mammoth Mountain would.

Mammoth MountainBehr Mammoth Mountain living room interior

Visualization

Tranquil DawnDulux Tranquil Dawn living room fireplace review

@gwynfa_renovation

Bedroom

The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. Tranquil Dawn reflects noticeably more light off the walls, making the space read more open than Mammoth Mountain.

Mammoth MountainBehr Mammoth Mountain bedroom

Visualization

Tranquil DawnTranquil Dawn bedroom color review

@our_tooting_terrace

Kitchen

In a kitchen, colors are seen under bright task lighting that amplifies undertones — what reads neutral elsewhere can show its hand here. Tranquil Dawn reflects noticeably more light off the walls, making the space read more open than Mammoth Mountain.

Mammoth MountainBehr Mammoth Mountain kitchen painted backsplash

Visualization

Tranquil DawnDulux Tranquil Dawn kitchen color review

@itsjustahouse

Bathroom

Bathrooms are one of the few spaces where you're genuinely enclosed by the paint color, which makes the choice between these two more consequential. Tranquil Dawn reflects noticeably more light off the walls, making the space read more open than Mammoth Mountain.

Mammoth MountainBehr Mammoth Mountain bathroom

Visualization

Tranquil DawnDulux Tranquil Dawn bathroom paint

@thesuffolkmanse

Kitchen Cabinets

Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Tranquil Dawn reflects noticeably more light off the walls, making the space read more open than Mammoth Mountain.

Mammoth MountainBehr Mammoth Mountain kitchen cabinets

Visualization

Tranquil DawnTranquil Dawn kitchen cabinets color review

@everythingsrosiedecorating

Color Details

Mammoth Mountain
Behr · S460-6
Hex#3b6a7a
LRV11.3
BrandBehr
NumberS460-6
UndertoneBlue
TemperatureCool
BrightnessDark
Tranquil Dawn
Dulux · 45GY 55/052
Hex#BDC3B9
LRV55.0
BrandDulux
Number45GY 55/052
Undertone
TemperatureNeutral
BrightnessMedium

Mammoth Mountain vs Tranquil Dawn Simulated Comparison

5 simulated room previews — drag the slider on each to see Mammoth Mountain on one side and Tranquil Dawn 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 Mammoth Mountain comparisons

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

White Dove
Mammoth Mountain
White Dove
Benjamin Moore
White Dove
LRV 83

White Dove is the lighter choice

Ammonite
Mammoth Mountain
Ammonite
Farrow & Ball
Ammonite
LRV 69

Ammonite is the lighter choice

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

Mammoth Mountain reads slightly lighter

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

Purbeck Stone is the lighter choice

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

Evergreen Fog reads noticeably lighter

Mizzle
Mammoth Mountain
Mizzle
Farrow & Ball
Mizzle
LRV 52

Mizzle is the lighter choice

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

Agreeable Gray is the lighter choice

Denim Drift
Mammoth Mountain
Denim Drift
Dulux
Denim Drift
LRV 27

Denim Drift reads noticeably lighter

Balboa Mist
Mammoth Mountain
Balboa Mist
Benjamin Moore
Balboa Mist
LRV 66

Balboa Mist is the lighter choice

Vintage Vogue
Mammoth Mountain
Vintage Vogue
Benjamin Moore
Vintage Vogue
LRV 12

Nearly identical in tone

Pale Green
Mammoth Mountain
Pale Green
RAL ClassicClassic
Pale Green
LRV 31

Pale Green reads noticeably lighter

Pine Needle
Mammoth Mountain
Pine Needle
Dulux
Pine Needle
LRV 7

Mammoth Mountain reads slightly lighter

Cement grey
Mammoth Mountain
Cement grey
RAL ClassicClassic
Cement grey
LRV 24

Cement grey reads noticeably lighter

Just Walnut
Mammoth Mountain
Just Walnut
Dulux
Just Walnut
LRV 72

Just Walnut is the lighter choice

Black grey
Mammoth Mountain
Black grey
RAL ClassicClassic
Black grey
LRV 6

Mammoth Mountain reads slightly lighter

Piazza
Mammoth Mountain
Piazza
Tikkurila
Piazza
LRV 65

Piazza is the lighter choice

Humble Yellow
Mammoth Mountain
Humble Yellow
Jotun
Humble Yellow
LRV 57

Humble Yellow is the lighter choice

Windmill Lane
Mammoth Mountain
Windmill Lane
Little Greene
Windmill Lane
LRV 31

Windmill Lane reads noticeably lighter

Senses
Mammoth Mountain
Senses
Jotun
Senses
LRV 41

Senses is the lighter choice

Lamp Black
Mammoth Mountain
Lamp Black
Little Greene
Lamp Black
LRV 3

Mammoth Mountain reads slightly lighter

Washed Linen
Mammoth Mountain
Washed Linen
Jotun
Washed Linen
LRV 55

Washed Linen is the lighter choice

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

Tea with Florence reads slightly lighter

Thames Fog
Mammoth Mountain
Thames Fog
Valspar
Thames Fog
LRV 27

Thames Fog reads noticeably lighter

Ocean Abyss
Mammoth Mountain
Ocean Abyss
Behr
Ocean Abyss
LRV 7

Mammoth Mountain reads slightly lighter

Classic Silver
Mammoth Mountain
Classic Silver
Behr
Classic Silver
LRV 48

Classic Silver is the lighter choice

Teton Blue
Mammoth Mountain
Teton Blue
Behr
Teton Blue
LRV 31

Teton Blue reads noticeably lighter

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

RAL 110-2 is the lighter choice

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

RAL 110-1 is the lighter choice

Paper
Mammoth Mountain
Paper
Tikkurila
Paper
LRV 88

Paper is the lighter choice

Passageway
Mammoth Mountain
Passageway
Valspar
Passageway
LRV 14

Nearly identical in tone