Mustard Blanket vs Black grey

Mustard BlanketDuluxvsBlack greyRAL ClassicΔE 65.5Very different colors

Where Mustard Blanket belongs to Dulux's range, Black grey is a RAL Classic color. Hue-wise, Mustard Blanket belongs to the beige family and Black grey to the blue-grey family. Mustard Blanket (LRV 34) reflects noticeably more light than Black grey (LRV 6), a difference of 28 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 65.5, 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 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.

Mustard Blanket vs Black grey in Real Spaces

1 real room side by side. Seeing Mustard Blanket and Black grey 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 Mustard Blanket will make the room feel meaningfully brighter than Black grey would.

Mustard BlanketDulux Mustard Blanket living room makeover

@making.it.home.again

Black greyRAL Classic Black grey 7021 living room

@dorfstadtvilla

Color Details

Mustard Blanket
Dulux · 40YY 34/446
Hex#B89441
LRV34.0
BrandDulux
Number40YY 34/446
Undertone
TemperatureWarm
BrightnessMedium
Black grey
RAL Classic · RAL 7021
Hex#2F3234
LRV6.5
BrandRAL Classic
NumberRAL 7021
Undertone
Temperature
BrightnessDark

Mustard Blanket vs Black grey Simulated Comparison

5 simulated room previews — drag the slider on each to see Mustard Blanket on one side and Black grey 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 Mustard Blanket comparisons

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

White Dove
Mustard Blanket
White Dove
Benjamin Moore
White Dove
LRV 83

White Dove is the lighter choice

Ammonite
Mustard Blanket
Ammonite
Farrow & Ball
Ammonite
LRV 69

Ammonite is the lighter choice

Iron Ore
Mustard Blanket
Iron Ore
Sherwin-Williams
Iron Ore
LRV 6

Mustard Blanket is the lighter choice

Purbeck Stone
Mustard Blanket
Purbeck Stone
Farrow & Ball
Purbeck Stone
LRV 52

Purbeck Stone reads noticeably lighter

Evergreen Fog
Mustard Blanket
Evergreen Fog
Sherwin-Williams
Evergreen Fog
LRV 30

Mustard Blanket reads slightly lighter

Mizzle
Mustard Blanket
Mizzle
Farrow & Ball
Mizzle
LRV 52

Mizzle reads noticeably lighter

Agreeable Gray
Mustard Blanket
Agreeable Gray
Sherwin-Williams
Agreeable Gray
LRV 60

Agreeable Gray is the lighter choice

Denim Drift
Mustard Blanket
Denim Drift
Dulux
Denim Drift
LRV 27

Mustard Blanket reads slightly lighter

Tranquil Dawn
Mustard Blanket
Tranquil Dawn
Dulux
Tranquil Dawn
LRV 55

Tranquil Dawn reads noticeably lighter

Balboa Mist
Mustard Blanket
Balboa Mist
Benjamin Moore
Balboa Mist
LRV 66

Balboa Mist is the lighter choice

Vintage Vogue
Mustard Blanket
Vintage Vogue
Benjamin Moore
Vintage Vogue
LRV 12

Mustard Blanket reads noticeably lighter

Pale Green
Mustard Blanket
Pale Green
RAL ClassicClassic
Pale Green
LRV 31

Nearly identical in tone

Pine Needle
Mustard Blanket
Pine Needle
Dulux
Pine Needle
LRV 7

Mustard Blanket is the lighter choice

Cement grey
Mustard Blanket
Cement grey
RAL ClassicClassic
Cement grey
LRV 24

Mustard Blanket reads slightly lighter

Piazza
Mustard Blanket
Piazza
Tikkurila
Piazza
LRV 65

Piazza is the lighter choice

Humble Yellow
Mustard Blanket
Humble Yellow
Jotun
Humble Yellow
LRV 57

Humble Yellow reads noticeably lighter

Grey Blue
Mustard Blanket
Grey Blue
RAL ClassicClassic
Grey Blue
LRV 7

Mustard Blanket is the lighter choice

Windmill Lane
Mustard Blanket
Windmill Lane
Little Greene
Windmill Lane
LRV 31

Nearly identical in tone

Senses
Mustard Blanket
Senses
Jotun
Senses
LRV 41

Senses reads slightly lighter

Lamp Black
Mustard Blanket
Lamp Black
Little Greene
Lamp Black
LRV 3

Mustard Blanket is the lighter choice

Washed Linen
Mustard Blanket
Washed Linen
Jotun
Washed Linen
LRV 55

Washed Linen reads noticeably lighter

Tea with Florence
Mustard Blanket
Tea with Florence
Little Greene
Tea with Florence
LRV 18

Mustard Blanket reads noticeably lighter

Thames Fog
Mustard Blanket
Thames Fog
Valspar
Thames Fog
LRV 27

Mustard Blanket reads slightly lighter

Ocean Abyss
Mustard Blanket
Ocean Abyss
Behr
Ocean Abyss
LRV 7

Mustard Blanket is the lighter choice

Classic Silver
Mustard Blanket
Classic Silver
Behr
Classic Silver
LRV 48

Classic Silver reads noticeably lighter

Teton Blue
Mustard Blanket
Teton Blue
Behr
Teton Blue
LRV 31

Mustard Blanket reads slightly lighter

RAL 110-2
Mustard Blanket
RAL 110-2
RAL EffectEffect
RAL 110-2
LRV 72

RAL 110-2 is the lighter choice

RAL 110-1
Mustard Blanket
RAL 110-1
RAL EffectEffect
RAL 110-1
LRV 80

RAL 110-1 is the lighter choice

Paper
Mustard Blanket
Paper
Tikkurila
Paper
LRV 88

Paper is the lighter choice

Passageway
Mustard Blanket
Passageway
Valspar
Passageway
LRV 14

Mustard Blanket reads noticeably lighter