Sky blue vs Black grey

RAL Classic
·
RAL Classic

Both from RAL Classic's palette. Sky blue (LRV 19) reflects noticeably more light than Black grey (LRV 6), a difference of 13 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 44.6, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question.

Sky blue 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 44.6Very different colors

Color Details

Sky blue
RAL Classic · RAL 5015
Hex#007CAF
LRV19.0
BrandRAL Classic
NumberRAL 5015
Undertone
Temperature
Brightnessdark
View Sky blue
Black grey
RAL Classic · RAL 7021
Hex#2F3234
LRV6.5
BrandRAL Classic
NumberRAL 7021
Undertone
Temperature
Brightnessdark
View Black grey

Sky blue vs Black grey in Real Spaces

Seeing Sky 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. Showing 2 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. Sky blue reflects noticeably more light off the walls, making the space read more open than Black grey.

Sky blue
RAL Classic  Sky blue RAL 5015 garage door

@centroservicesrl

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. The LRV gap is large enough that Sky blue will make the room feel meaningfully brighter than Black grey would.

Sky blue
RAL Classic  Sky blue RAL 5015 front door

@michalik.salon

Black grey
RAL Classic  Black grey RAL 7021 front door

@doing_up_the_doer_upper

More Sky blue comparisons

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

White Dove
Sky blue
White Dove

Light vs dark contrast

RAL Classic vs Benjamin Moore

Ammonite
Sky blue
Ammonite

Light vs dark contrast

RAL Classic vs Farrow & Ball

Iron Ore
Sky blue
Iron Ore

Sky blue reads lighter

RAL Classic vs Sherwin-Williams

Purbeck Stone
Sky blue
Purbeck Stone

Light vs dark contrast

RAL Classic vs Farrow & Ball

Evergreen Fog
Sky blue
Evergreen Fog

Evergreen Fog reads lighter

RAL Classic vs Sherwin-Williams

Mizzle
Sky blue
Mizzle

Light vs dark contrast

RAL Classic vs Farrow & Ball

Agreeable Gray
Sky blue
Agreeable Gray

Light vs dark contrast

RAL Classic vs Sherwin-Williams

Denim Drift
Sky blue
Denim Drift

RAL Classic vs Dulux

RAL Classic vs Dulux

Tranquil Dawn
Sky blue
Tranquil Dawn

Light vs dark contrast

RAL Classic vs Dulux

Balboa Mist
Sky blue
Balboa Mist

Light vs dark contrast

RAL Classic vs Benjamin Moore

Vintage Vogue
Sky blue
Vintage Vogue

RAL Classic vs Benjamin Moore

RAL Classic vs Benjamin Moore

Pale Green
Sky blue
Pale Green

Pale Green reads lighter

RAL Classic

Pine Needle
Sky blue
Pine Needle

Sky blue reads lighter

RAL Classic vs Dulux

Cement grey
Sky blue
Cement grey

Two RAL Classic colors

RAL Classic

Humble Yellow
Sky blue
Humble Yellow

Light vs dark contrast

RAL Classic vs Jotun

Grey Blue
Sky blue
Grey Blue

Sky blue reads lighter

RAL Classic

Windmill Lane
Sky blue
Windmill Lane

Windmill Lane reads lighter

RAL Classic vs Little Greene

Senses
Sky blue
Senses

Light vs dark contrast

RAL Classic vs Jotun

Lamp Black
Sky blue
Lamp Black

Sky blue reads lighter

RAL Classic vs Little Greene

Washed Linen
Sky blue
Washed Linen

Light vs dark contrast

RAL Classic vs Jotun

Tea with Florence
Sky blue
Tea with Florence

RAL Classic vs Little Greene

RAL Classic vs Little Greene

Ocean Abyss
Sky blue
Ocean Abyss

Sky blue reads lighter

RAL Classic vs Behr

Classic Silver
Sky blue
Classic Silver

Light vs dark contrast

RAL Classic vs Behr

Teton Blue
Sky blue
Teton Blue

Teton Blue reads lighter

RAL Classic vs Behr

RAL 110-2
Sky blue
RAL 110-2

Light vs dark contrast

RAL Classic vs RAL Effect

RAL 110-1
Sky blue
RAL 110-1

Light vs dark contrast

RAL Classic vs RAL Effect

RAL 180-1
Sky blue
RAL 180-1

Light vs dark contrast

RAL Classic vs RAL Effect

S 8000-N
Sky blue
S 8000-N

Sky blue reads lighter

RAL Classic vs NCS

S 0500-N
Sky blue
S 0500-N

Light vs dark contrast

RAL Classic vs NCS

S 0502-Y
Sky blue
S 0502-Y

Light vs dark contrast

RAL Classic vs NCS