Blue Ground vs Black grey

Blue GroundFarrow & BallvsBlack greyRAL ClassicΔE 57.6Very different colors

Blue Ground is a Farrow & Ball color while Black grey comes from RAL Classic. Hue-wise, Blue Ground belongs to the blue family and Black grey to the blue-grey family. At LRV 49 vs 6, Blue Ground will read as the brighter of the two — a 43-point gap that matters most in north-facing or low-light rooms. At ΔE 57.6, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 4 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.

Blue Ground vs Black grey in Real Spaces

4 real rooms side by side. Seeing Blue Ground 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

Living rooms test a color across a full range of conditions — morning sun, afternoon shade, and evening lamp light all shift how both of these read. Blue Ground returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.

Blue GroundFarrow and Ball Blue Ground living room review

@harmonyhaus

Black greyRAL Classic Black grey 7021 living room

@dorfstadtvilla

House

At full exterior scale, the difference between these two colors becomes much easier to judge than from a small chip. The LRV gap is large enough that Blue Ground will make the room feel meaningfully brighter than Black grey would.

Blue GroundFarrow and Ball Blue Ground door paint

@carrscottage

Black greyRAL Classic Black grey 7021 house exterior

@ebbandflow_home

Front Door

Front doors are seen in isolation against the rest of the facade, which makes them a high-stakes surface where even subtle differences matter. Blue Ground returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.

Blue GroundFarrow and Ball Blue Ground front door paint

@carrscottage

Black greyRAL Classic Black grey 7021 front door

@doing_up_the_doer_upper

Kitchen Cabinets

On cabinetry, undertone and temperature become more pronounced against countertops and hardware. The LRV gap is large enough that Blue Ground will make the room feel meaningfully brighter than Black grey would.

Blue GroundFarrow and Ball Blue Ground kitchen cabinets color

@karolinarochmandesign

Black greyRAL Classic 7021 kitchen cabinets paint review

@a.jak.agata

Color Details

Blue Ground
Farrow & Ball · 210
Hex#a1c5c8
LRV49.5
BrandFarrow & Ball
Number210
Undertone
TemperatureCool
BrightnessMedium
Black grey
RAL Classic · RAL 7021
Hex#2F3234
LRV6.5
BrandRAL Classic
NumberRAL 7021
Undertone
Temperature
BrightnessDark

Blue Ground vs Black grey Simulated Comparison

5 simulated room previews — drag the slider on each to see Blue Ground 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 Blue Ground comparisons

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

White Dove
Blue Ground
White Dove
Benjamin Moore
White Dove
LRV 83

White Dove is the lighter choice

Ammonite
Blue Ground
Ammonite
Farrow & Ball
Ammonite
LRV 69

Ammonite reads noticeably lighter

Iron Ore
Blue Ground
Iron Ore
Sherwin-Williams
Iron Ore
LRV 6

Blue Ground is the lighter choice

Purbeck Stone
Blue Ground
Purbeck Stone
Farrow & Ball
Purbeck Stone
LRV 52

Nearly identical in tone

Evergreen Fog
Blue Ground
Evergreen Fog
Sherwin-Williams
Evergreen Fog
LRV 30

Blue Ground reads noticeably lighter

Mizzle
Blue Ground
Mizzle
Farrow & Ball
Mizzle
LRV 52

Nearly identical in tone

Agreeable Gray
Blue Ground
Agreeable Gray
Sherwin-Williams
Agreeable Gray
LRV 60

Agreeable Gray reads slightly lighter

Denim Drift
Blue Ground
Denim Drift
Dulux
Denim Drift
LRV 27

Blue Ground reads noticeably lighter

Tranquil Dawn
Blue Ground
Tranquil Dawn
Dulux
Tranquil Dawn
LRV 55

Tranquil Dawn reads slightly lighter

Balboa Mist
Blue Ground
Balboa Mist
Benjamin Moore
Balboa Mist
LRV 66

Balboa Mist reads noticeably lighter

Vintage Vogue
Blue Ground
Vintage Vogue
Benjamin Moore
Vintage Vogue
LRV 12

Blue Ground is the lighter choice

Pale Green
Blue Ground
Pale Green
RAL ClassicClassic
Pale Green
LRV 31

Blue Ground reads noticeably lighter

Pine Needle
Blue Ground
Pine Needle
Dulux
Pine Needle
LRV 7

Blue Ground is the lighter choice

Cement grey
Blue Ground
Cement grey
RAL ClassicClassic
Cement grey
LRV 24

Blue Ground is the lighter choice

Piazza
Blue Ground
Piazza
Tikkurila
Piazza
LRV 65

Piazza reads noticeably lighter

Humble Yellow
Blue Ground
Humble Yellow
Jotun
Humble Yellow
LRV 57

Humble Yellow reads slightly lighter

Grey Blue
Blue Ground
Grey Blue
RAL ClassicClassic
Grey Blue
LRV 7

Blue Ground is the lighter choice

Windmill Lane
Blue Ground
Windmill Lane
Little Greene
Windmill Lane
LRV 31

Blue Ground reads noticeably lighter

Senses
Blue Ground
Senses
Jotun
Senses
LRV 41

Blue Ground reads slightly lighter

Lamp Black
Blue Ground
Lamp Black
Little Greene
Lamp Black
LRV 3

Blue Ground is the lighter choice

Washed Linen
Blue Ground
Washed Linen
Jotun
Washed Linen
LRV 55

Washed Linen reads slightly lighter

Tea with Florence
Blue Ground
Tea with Florence
Little Greene
Tea with Florence
LRV 18

Blue Ground is the lighter choice

Thames Fog
Blue Ground
Thames Fog
Valspar
Thames Fog
LRV 27

Blue Ground reads noticeably lighter

Ocean Abyss
Blue Ground
Ocean Abyss
Behr
Ocean Abyss
LRV 7

Blue Ground is the lighter choice

Classic Silver
Blue Ground
Classic Silver
Behr
Classic Silver
LRV 48

Nearly identical in tone

Teton Blue
Blue Ground
Teton Blue
Behr
Teton Blue
LRV 31

Blue Ground reads noticeably lighter

RAL 110-2
Blue Ground
RAL 110-2
RAL EffectEffect
RAL 110-2
LRV 72

RAL 110-2 reads noticeably lighter

RAL 110-1
Blue Ground
RAL 110-1
RAL EffectEffect
RAL 110-1
LRV 80

RAL 110-1 is the lighter choice

Paper
Blue Ground
Paper
Tikkurila
Paper
LRV 88

Paper is the lighter choice

Passageway
Blue Ground
Passageway
Valspar
Passageway
LRV 14

Blue Ground is the lighter choice