Ruby red vs Black grey

RAL Classic
·
RAL Classic

Ruby red and Black grey come from the same RAL Classic collection. Their light reflectance values are nearly the same — 9 vs 6 — so neither will read significantly brighter or darker than the other. A ΔE of 53.3 puts these firmly in different territory — two distinct design choices rather than close alternatives.

Ruby red 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 53.3Very different colors

Color Details

Ruby red
RAL Classic · RAL 3003
Hex#861A22
LRV8.8
BrandRAL Classic
NumberRAL 3003
Undertone
Temperature
Brightnessdark
View Ruby red
Black grey
RAL Classic · RAL 7021
Hex#2F3234
LRV6.5
BrandRAL Classic
NumberRAL 7021
Undertone
Temperature
Brightnessdark
View Black grey

Ruby red vs Black grey in Real Spaces

Seeing Ruby red 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

A full exterior is the most demanding test for a paint color — scale and outdoor light both amplify differences that seem small on a swatch. At this scale, the choice between them becomes clear in a way that a swatch alone can't communicate.

Ruby red
RAL Classic  Ruby red garage door review

@a_s_doors_ltd

Black grey
RAL Classic  Black grey RAL 7021 house exterior

@ebbandflow_home

Front Door

On a front door, the color is both the first and last thing you see — a context where even a modest tonal difference reads clearly. The distinction reads clearly at room scale, making the choice between them concrete.

Ruby red
RAL Classic  Ruby red front door paint

@a_s_doors_ltd

Black grey
RAL Classic  Black grey RAL 7021 front door

@doing_up_the_doer_upper

Kitchen Cabinets

Cabinet color is always seen in context — against countertops, backsplash, and hardware — which amplifies undertone differences that might disappear on a plain wall. At this scale, the choice between them becomes clear in a way that a swatch alone can't communicate.

Ruby red
RAL 3003 kitchen cabinets review

@artiora.ru

Black grey
RAL 7021 kitchen cabinets paint review

@a.jak.agata

More Ruby red comparisons

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

White Dove
Ruby red
White Dove

Light vs dark contrast

RAL Classic vs Benjamin Moore

Ammonite
Ruby red
Ammonite

Light vs dark contrast

RAL Classic vs Farrow & Ball

Iron Ore
Ruby red
Iron Ore

RAL Classic vs Sherwin-Williams

RAL Classic vs Sherwin-Williams

Purbeck Stone
Ruby red
Purbeck Stone

Light vs dark contrast

RAL Classic vs Farrow & Ball

Evergreen Fog
Ruby red
Evergreen Fog

Light vs dark contrast

RAL Classic vs Sherwin-Williams

Mizzle
Ruby red
Mizzle

Light vs dark contrast

RAL Classic vs Farrow & Ball

Agreeable Gray
Ruby red
Agreeable Gray

Light vs dark contrast

RAL Classic vs Sherwin-Williams

Denim Drift
Ruby red
Denim Drift

Denim Drift reads lighter

RAL Classic vs Dulux

Tranquil Dawn
Ruby red
Tranquil Dawn

Light vs dark contrast

RAL Classic vs Dulux

Balboa Mist
Ruby red
Balboa Mist

Light vs dark contrast

RAL Classic vs Benjamin Moore

Vintage Vogue
Ruby red
Vintage Vogue

RAL Classic vs Benjamin Moore

RAL Classic vs Benjamin Moore

Pale Green
Ruby red
Pale Green

Light vs dark contrast

RAL Classic

Pine Needle
Ruby red
Pine Needle

RAL Classic vs Dulux

RAL Classic vs Dulux

Cement grey
Ruby red
Cement grey

Cement grey reads lighter

RAL Classic

Humble Yellow
Ruby red
Humble Yellow

Light vs dark contrast

RAL Classic vs Jotun

Grey Blue
Ruby red
Grey Blue

Two RAL Classic colors

RAL Classic

Windmill Lane
Ruby red
Windmill Lane

Light vs dark contrast

RAL Classic vs Little Greene

Senses
Ruby red
Senses

Light vs dark contrast

RAL Classic vs Jotun

Lamp Black
Ruby red
Lamp Black

RAL Classic vs Little Greene

RAL Classic vs Little Greene

Washed Linen
Ruby red
Washed Linen

Light vs dark contrast

RAL Classic vs Jotun

Tea with Florence
Ruby red
Tea with Florence

Tea with Florence reads lighter

RAL Classic vs Little Greene

Ocean Abyss
Ruby red
Ocean Abyss

RAL Classic vs Behr

RAL Classic vs Behr

Classic Silver
Ruby red
Classic Silver

Light vs dark contrast

RAL Classic vs Behr

Teton Blue
Ruby red
Teton Blue

Light vs dark contrast

RAL Classic vs Behr

RAL 110-2
Ruby red
RAL 110-2

Light vs dark contrast

RAL Classic vs RAL Effect

RAL 110-1
Ruby red
RAL 110-1

Light vs dark contrast

RAL Classic vs RAL Effect

RAL 180-1
Ruby red
RAL 180-1

Light vs dark contrast

RAL Classic vs RAL Effect

S 8000-N
Ruby red
S 8000-N

RAL Classic vs NCS

RAL Classic vs NCS

S 0500-N
Ruby red
S 0500-N

Light vs dark contrast

RAL Classic vs NCS

S 0502-Y
Ruby red
S 0502-Y

Light vs dark contrast

RAL Classic vs NCS