Blue green vs Black grey

RAL Classic
·
RAL Classic

Both from RAL Classic's palette. They have nearly identical light reflectance values (8 vs 6), so they'll read as similarly dark in most lighting conditions. With a ΔE of 19.0, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question.

Blue green vs Black grey Color Comparison

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.

ΔE 19.0Distinct difference

Color Details

Blue green
RAL Classic · RAL 6004
Hex#024442
LRV7.7
BrandRAL Classic
NumberRAL 6004
Undertone
Temperature
Brightnessdark
View Blue green
Black grey
RAL Classic · RAL 7021
Hex#2F3234
LRV6.5
BrandRAL Classic
NumberRAL 7021
Undertone
Temperature
Brightnessdark
View Black grey

Blue green vs Black grey in Real Spaces

Seeing Blue green 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. Showing 3 room types where both colors have photos.

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.

Blue green
RAL Classic RAL 6004 house exterior paint

@aa.koti

Black grey
RAL Classic  Black grey RAL 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.

Blue green
 Blue green front door photo

@pittner_fenster_und_tueren

Black grey
RAL Classic  Black grey RAL 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.

Blue green
RAL Classic RAL 6004 kitchen cabinets review

@malowanie_mebli

Black grey
RAL 7021 kitchen cabinets paint review

@a.jak.agata

More Blue green comparisons

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

White Dove
Blue green
White Dove

Light vs dark contrast

RAL Classic vs Benjamin Moore

Ammonite
Blue green
Ammonite

Light vs dark contrast

RAL Classic vs Farrow & Ball

Iron Ore
Blue green
Iron Ore

RAL Classic vs Sherwin-Williams

RAL Classic vs Sherwin-Williams

Purbeck Stone
Blue green
Purbeck Stone

Light vs dark contrast

RAL Classic vs Farrow & Ball

Evergreen Fog
Blue green
Evergreen Fog

Light vs dark contrast

RAL Classic vs Sherwin-Williams

Mizzle
Blue green
Mizzle

Light vs dark contrast

RAL Classic vs Farrow & Ball

Agreeable Gray
Blue green
Agreeable Gray

Light vs dark contrast

RAL Classic vs Sherwin-Williams

Denim Drift
Blue green
Denim Drift

Denim Drift reads lighter

RAL Classic vs Dulux

Tranquil Dawn
Blue green
Tranquil Dawn

Light vs dark contrast

RAL Classic vs Dulux

Balboa Mist
Blue green
Balboa Mist

Light vs dark contrast

RAL Classic vs Benjamin Moore

Vintage Vogue
Blue green
Vintage Vogue

RAL Classic vs Benjamin Moore

RAL Classic vs Benjamin Moore

Pale Green
Blue green
Pale Green

Light vs dark contrast

RAL Classic

Pine Needle
Blue green
Pine Needle

RAL Classic vs Dulux

RAL Classic vs Dulux

Cement grey
Blue green
Cement grey

Cement grey reads lighter

RAL Classic

Humble Yellow
Blue green
Humble Yellow

Light vs dark contrast

RAL Classic vs Jotun

Grey Blue
Blue green
Grey Blue

Two RAL Classic colors

RAL Classic

Windmill Lane
Blue green
Windmill Lane

Light vs dark contrast

RAL Classic vs Little Greene

Senses
Blue green
Senses

Light vs dark contrast

RAL Classic vs Jotun

Lamp Black
Blue green
Lamp Black

RAL Classic vs Little Greene

RAL Classic vs Little Greene

Washed Linen
Blue green
Washed Linen

Light vs dark contrast

RAL Classic vs Jotun

Tea with Florence
Blue green
Tea with Florence

Tea with Florence reads lighter

RAL Classic vs Little Greene

Ocean Abyss
Blue green
Ocean Abyss

RAL Classic vs Behr

RAL Classic vs Behr

Classic Silver
Blue green
Classic Silver

Light vs dark contrast

RAL Classic vs Behr

Teton Blue
Blue green
Teton Blue

Light vs dark contrast

RAL Classic vs Behr

RAL 110-2
Blue green
RAL 110-2

Light vs dark contrast

RAL Classic vs RAL Effect

RAL 110-1
Blue green
RAL 110-1

Light vs dark contrast

RAL Classic vs RAL Effect

RAL 180-1
Blue green
RAL 180-1

Light vs dark contrast

RAL Classic vs RAL Effect

S 8000-N
Blue green
S 8000-N

RAL Classic vs NCS

RAL Classic vs NCS

S 0500-N
Blue green
S 0500-N

Light vs dark contrast

RAL Classic vs NCS

S 0502-Y
Blue green
S 0502-Y

Light vs dark contrast

RAL Classic vs NCS