Gossamer Blue vs Cement grey

Gossamer BlueBenjamin MoorevsCement greyRAL ClassicΔE 27.3Very different colors

Where Gossamer Blue belongs to Benjamin Moore's range, Cement grey is a RAL Classic color. Gossamer Blue reads as blue, while Cement grey reads as grey — two distinct hue families, not close cousins. Gossamer Blue (LRV 55) reflects noticeably more light than Cement grey (LRV 24), a difference of 31 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 27.3, 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 5 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.

Gossamer Blue vs Cement grey in Real Spaces

5 real rooms side by side. Seeing Gossamer Blue and Cement 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. The LRV gap is large enough that Gossamer Blue will make the room feel meaningfully brighter than Cement grey would.

Gossamer Blue2123-40 Living Room

@stefculbertson

Cement greyRAL Classic Cement grey 7033 living room

@barnhouse_veluwe

Bedroom

The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. Gossamer Blue reflects noticeably more light off the walls, making the space read more open than Cement grey.

Gossamer BlueBm Gossamer Blue Bedroom

@gohophoto

Cement greyRAL Classic Cement grey 7033 bedroom

@11k.studio

Bathroom

Bathrooms are one of the few spaces where you're genuinely enclosed by the paint color, which makes the choice between these two more consequential. Gossamer Blue reflects noticeably more light off the walls, making the space read more open than Cement grey.

Gossamer BlueBenjamin Moore Gossamer Blue Bathroom Paint

@jamiecostarowe11

Cement greyRAL Classic Cement grey 7033 bathroom

@ediz_yapi

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 Gossamer Blue will make the room feel meaningfully brighter than Cement grey would.

Gossamer BlueBm Gossamer Blue Front Door

@woodstreamcottage

Cement greyRAL Classic Cement grey 7033 front door

@drzwi_zbydrew

Kitchen Cabinets

Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Gossamer Blue reflects noticeably more light off the walls, making the space read more open than Cement grey.

Gossamer Blue2123-40 Kitchen Cabinets

@gregoryspaintandflooring

Cement greyRAL Classic Cement grey 7033 kitchen cabinets

@kasia.kopacz

Color Details

Gossamer Blue
Benjamin Moore · 2123-40
Hex#B3C8C8
LRV55.0
BrandBenjamin Moore
Number2123-40
UndertoneBlue
TemperatureCool
BrightnessMedium
Cement grey
RAL Classic · RAL 7033
Hex#7F8274
LRV24.1
BrandRAL Classic
NumberRAL 7033
Undertone
Temperature
BrightnessDark

Gossamer Blue vs Cement grey Simulated Comparison

5 simulated room previews — drag the slider on each to see Gossamer Blue on one side and Cement 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 Gossamer Blue comparisons

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

White Dove
Gossamer Blue
White Dove
Benjamin Moore
White Dove
LRV 83

White Dove is the lighter choice

Ammonite
Gossamer Blue
Ammonite
Farrow & Ball
Ammonite
LRV 69

Ammonite reads noticeably lighter

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

Gossamer Blue is the lighter choice

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

Gossamer Blue reads slightly lighter

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

Gossamer Blue reads noticeably lighter

Mizzle
Gossamer Blue
Mizzle
Farrow & Ball
Mizzle
LRV 52

Gossamer Blue reads slightly lighter

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

Agreeable Gray reads slightly lighter

Denim Drift
Gossamer Blue
Denim Drift
Dulux
Denim Drift
LRV 27

Gossamer Blue is the lighter choice

Tranquil Dawn
Gossamer Blue
Tranquil Dawn
Dulux
Tranquil Dawn
LRV 55

Nearly identical in tone

Balboa Mist
Gossamer Blue
Balboa Mist
Benjamin Moore
Balboa Mist
LRV 66

Balboa Mist reads slightly lighter

Vintage Vogue
Gossamer Blue
Vintage Vogue
Benjamin Moore
Vintage Vogue
LRV 12

Gossamer Blue is the lighter choice

Pale Green
Gossamer Blue
Pale Green
RAL ClassicClassic
Pale Green
LRV 31

Gossamer Blue reads noticeably lighter

Pine Needle
Gossamer Blue
Pine Needle
Dulux
Pine Needle
LRV 7

Gossamer Blue is the lighter choice

Black grey
Gossamer Blue
Black grey
RAL ClassicClassic
Black grey
LRV 6

Gossamer Blue is the lighter choice

Piazza
Gossamer Blue
Piazza
Tikkurila
Piazza
LRV 65

Piazza reads slightly lighter

Humble Yellow
Gossamer Blue
Humble Yellow
Jotun
Humble Yellow
LRV 57

Nearly identical in tone

Grey Blue
Gossamer Blue
Grey Blue
RAL ClassicClassic
Grey Blue
LRV 7

Gossamer Blue is the lighter choice

Windmill Lane
Gossamer Blue
Windmill Lane
Little Greene
Windmill Lane
LRV 31

Gossamer Blue reads noticeably lighter

Senses
Gossamer Blue
Senses
Jotun
Senses
LRV 41

Gossamer Blue reads noticeably lighter

Lamp Black
Gossamer Blue
Lamp Black
Little Greene
Lamp Black
LRV 3

Gossamer Blue is the lighter choice

Washed Linen
Gossamer Blue
Washed Linen
Jotun
Washed Linen
LRV 55

Nearly identical in tone

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

Gossamer Blue is the lighter choice

Thames Fog
Gossamer Blue
Thames Fog
Valspar
Thames Fog
LRV 27

Gossamer Blue is the lighter choice

Ocean Abyss
Gossamer Blue
Ocean Abyss
Behr
Ocean Abyss
LRV 7

Gossamer Blue is the lighter choice

Classic Silver
Gossamer Blue
Classic Silver
Behr
Classic Silver
LRV 48

Gossamer Blue reads slightly lighter

Teton Blue
Gossamer Blue
Teton Blue
Behr
Teton Blue
LRV 31

Gossamer Blue reads noticeably lighter

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

RAL 110-2 reads noticeably lighter

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

RAL 110-1 reads noticeably lighter

Paper
Gossamer Blue
Paper
Tikkurila
Paper
LRV 88

Paper is the lighter choice

Passageway
Gossamer Blue
Passageway
Valspar
Passageway
LRV 14

Gossamer Blue is the lighter choice