Hague Blue vs Black grey

Hague BlueFarrow & BallvsBlack greyRAL ClassicΔE 13.3Distinct difference

Where Hague Blue belongs to Farrow & Ball's range, Black grey is a RAL Classic color. Hague Blue reads as blue, while Black grey reads as blue-grey — two distinct hue families, not close cousins. They have nearly identical light reflectance values (7 vs 6), so they'll read as similarly Dark in most lighting conditions. With a ΔE of 13.3, 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 4 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.

Hague Blue vs Black grey in Real Spaces

4 real rooms side by side. Seeing Hague Blue 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. Side by side like this, the difference is easy to read — which is exactly why seeing them in a real space is more useful than comparing chips.

Hague BlueFarrow and Ball Hague Blue stylish living room

@cavershamdecorators

Black greyRAL Classic Black grey 7021 living room

@dorfstadtvilla

House

Seen across an entire facade, subtle tonal differences become pronounced. What reads as nearly the same on a chip often reads as clearly different at scale. The distinction reads clearly at room scale, making the choice between them concrete.

Hague BlueFarrow and Ball Hague Blue exterior paint

@brambleandwild

Black greyRAL Classic Black grey 7021 house exterior

@ebbandflow_home

Front Door

A front door is a focal point — small color differences read clearly at this concentrated scale. Side by side like this, the difference is easy to read — which is exactly why seeing them in a real space is more useful than comparing chips.

Hague BlueHague Blue front door

@aaronhickton

Black greyRAL Classic Black grey 7021 front door

@doing_up_the_doer_upper

Kitchen Cabinets

Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. The distinction reads clearly at room scale, making the choice between them concrete.

Hague BlueFarrow and Ball Hague Blue kitchen cabinets paint review

@woldsfurniturecompany

Black greyRAL Classic 7021 kitchen cabinets paint review

@a.jak.agata

Color Details

Hague Blue
Farrow & Ball · 30
Hex#3d4e57
LRV7.0
BrandFarrow & Ball
Number30
Undertone
TemperatureCool
BrightnessDark
Black grey
RAL Classic · RAL 7021
Hex#2F3234
LRV6.5
BrandRAL Classic
NumberRAL 7021
Undertone
Temperature
BrightnessDark

Hague Blue vs Black grey Simulated Comparison

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

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

White Dove
Hague Blue
White Dove
Benjamin Moore
White Dove
LRV 83

White Dove is the lighter choice

Ammonite
Hague Blue
Ammonite
Farrow & Ball
Ammonite
LRV 69

Ammonite is the lighter choice

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

Nearly identical in tone

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

Purbeck Stone is the lighter choice

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

Evergreen Fog reads noticeably lighter

Mizzle
Hague Blue
Mizzle
Farrow & Ball
Mizzle
LRV 52

Mizzle is the lighter choice

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

Agreeable Gray is the lighter choice

Denim Drift
Hague Blue
Denim Drift
Dulux
Denim Drift
LRV 27

Denim Drift reads noticeably lighter

Tranquil Dawn
Hague Blue
Tranquil Dawn
Dulux
Tranquil Dawn
LRV 55

Tranquil Dawn is the lighter choice

Balboa Mist
Hague Blue
Balboa Mist
Benjamin Moore
Balboa Mist
LRV 66

Balboa Mist is the lighter choice

Vintage Vogue
Hague Blue
Vintage Vogue
Benjamin Moore
Vintage Vogue
LRV 12

Vintage Vogue reads slightly lighter

Pale Green
Hague Blue
Pale Green
RAL ClassicClassic
Pale Green
LRV 31

Pale Green reads noticeably lighter

Pine Needle
Hague Blue
Pine Needle
Dulux
Pine Needle
LRV 7

Nearly identical in tone

Cement grey
Hague Blue
Cement grey
RAL ClassicClassic
Cement grey
LRV 24

Cement grey reads noticeably lighter

Piazza
Hague Blue
Piazza
Tikkurila
Piazza
LRV 65

Piazza is the lighter choice

Humble Yellow
Hague Blue
Humble Yellow
Jotun
Humble Yellow
LRV 57

Humble Yellow is the lighter choice

Grey Blue
Hague Blue
Grey Blue
RAL ClassicClassic
Grey Blue
LRV 7

Nearly identical in tone

Windmill Lane
Hague Blue
Windmill Lane
Little Greene
Windmill Lane
LRV 31

Windmill Lane reads noticeably lighter

Senses
Hague Blue
Senses
Jotun
Senses
LRV 41

Senses is the lighter choice

Lamp Black
Hague Blue
Lamp Black
Little Greene
Lamp Black
LRV 3

Hague Blue reads slightly lighter

Washed Linen
Hague Blue
Washed Linen
Jotun
Washed Linen
LRV 55

Washed Linen is the lighter choice

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

Tea with Florence reads slightly lighter

Thames Fog
Hague Blue
Thames Fog
Valspar
Thames Fog
LRV 27

Thames Fog reads noticeably lighter

Ocean Abyss
Hague Blue
Ocean Abyss
Behr
Ocean Abyss
LRV 7

Nearly identical in tone

Classic Silver
Hague Blue
Classic Silver
Behr
Classic Silver
LRV 48

Classic Silver is the lighter choice

Teton Blue
Hague Blue
Teton Blue
Behr
Teton Blue
LRV 31

Teton Blue reads noticeably lighter

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

RAL 110-2 is the lighter choice

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

RAL 110-1 is the lighter choice

Paper
Hague Blue
Paper
Tikkurila
Paper
LRV 88

Paper is the lighter choice

Passageway
Hague Blue
Passageway
Valspar
Passageway
LRV 14

Passageway reads slightly lighter