Mountain Air vs Hardwick White

Mountain AirDuluxvsHardwick WhiteFarrow & BallΔE 23.2Distinct difference

Mountain Air (Dulux) and Hardwick White (Farrow & Ball) come from different manufacturers. Mountain Air reads as green-white, while Hardwick White reads as greige-grey — two distinct hue families, not close cousins. The 44-point LRV gap — 88 for Mountain Air vs 44 for Hardwick White — means Mountain Air will open up a space more effectively. Both share a warm character, which means they'll respond to light and surrounding materials in similar ways. A ΔE of 23.2 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.

Mountain Air vs Hardwick White in Real Spaces

3 real rooms side by side. Seeing Mountain Air and Hardwick White 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

A living room wall sees more varied light than almost any other surface in the house, which makes the choice between these two more nuanced than a chip suggests. Mountain Air reflects noticeably more light off the walls, making the space read more open than Hardwick White.

Mountain AirDulux Mountain Air hallway color review

@carla_ccdecor

Hardwick WhiteFarrow and Ball Hardwick White 5 living room

@pinnaclepaintanddecorators

Kitchen

Kitchens often have the harshest, most revealing light in the house — under-cabinet LEDs and overhead fixtures that strip away subtlety. Mountain Air returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.

Mountain AirDulux 21GY 88/066 kitchen

@carla_ccdecor

Hardwick WhiteFarrow and Ball Hardwick White 5 kitchen

@thelittlefixerupper

Mudroom

In a hardworking space like a mudroom, the depth and warmth of a color reads differently than in a quieter room. The LRV gap is large enough that Mountain Air will make the room feel meaningfully brighter than Hardwick White would.

Mountain AirDulux Mountain Air laundry room color

@carla_ccdecor

Hardwick WhiteFarrow and Ball Hardwick White 5 laundry room

@annemarieleigh_interiordesign

Color Details

Mountain Air
Dulux · 21GY 88/066
LRV88.0
BrandDulux
Number21GY 88/066
Undertone
TemperatureWarm
BrightnessLight
Hardwick White
Farrow & Ball · 5
LRV43.7
BrandFarrow & Ball
Number5
Undertone
TemperatureWarm
BrightnessMedium

Mountain Air vs Hardwick White Simulated Comparison

5 simulated room previews — drag the slider on each to see Mountain Air on one side and Hardwick White 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 Mountain Air comparisons

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

Mountain Air
Ammonite
Mountain Air
Ammonite
Dulux
Mountain Air
21GY 88/066 · LRV 88
Farrow & Ball
Ammonite
LRV 69

Mountain Air reflects far more light (LRV 88 vs 69), opening up a space where Ammonite encloses it.

White Dove
Mountain Air
White Dove
Mountain Air
Dulux
Mountain Air
21GY 88/066 · LRV 88

A 5-point LRV gap (88 vs 83) makes Mountain Air the marginally brighter of the two.

Mountain Air
Iron Ore
Mountain Air
Iron Ore
Dulux
Mountain Air
21GY 88/066 · LRV 88

At LRV 88 vs 6, Mountain Air is decisively the brighter choice.

Mountain Air
Purbeck Stone
Mountain Air
Purbeck Stone
Dulux
Mountain Air
21GY 88/066 · LRV 88

Mountain Air reflects far more light (LRV 88 vs 52), opening up a space where Purbeck Stone encloses it.

Mountain Air
Evergreen Fog
Mountain Air
Evergreen Fog
Dulux
Mountain Air
21GY 88/066 · LRV 88

Mountain Air reflects far more light (LRV 88 vs 30), opening up a space where Evergreen Fog encloses it.

Mountain Air
Mizzle
Mountain Air
Mizzle
Dulux
Mountain Air
21GY 88/066 · LRV 88
Farrow & Ball
Mizzle
LRV 52

At LRV 88 vs 52, Mountain Air is decisively the brighter choice.

Mountain Air
Agreeable Gray
Mountain Air
Agreeable Gray
Dulux
Mountain Air
21GY 88/066 · LRV 88

Mountain Air reflects far more light (LRV 88 vs 60), opening up a space where Agreeable Gray encloses it.

Mountain Air
Accessible Beige
Mountain Air
Accessible Beige
Dulux
Mountain Air
21GY 88/066 · LRV 88

At LRV 88 vs 58, Mountain Air is decisively the brighter choice.

Denim Drift
Mountain Air
Denim Drift
Mountain Air
Dulux
Mountain Air
21GY 88/066 · LRV 88

At LRV 88 vs 27, Mountain Air is decisively the brighter choice.

Mountain Air
French Gray
Mountain Air
French Gray
Dulux
Mountain Air
21GY 88/066 · LRV 88

Mountain Air reflects far more light (LRV 88 vs 43), opening up a space where French Gray encloses it.

Mountain Air
Naval
Mountain Air
Naval
Dulux
Mountain Air
21GY 88/066 · LRV 88
Sherwin-Williams
Naval
LRV 4

Mountain Air reflects far more light (LRV 88 vs 4), opening up a space where Naval encloses it.

Mountain Air
Tranquil Dawn
Mountain Air
Tranquil Dawn
Dulux
Mountain Air
21GY 88/066 · LRV 88

At LRV 88 vs 55, Mountain Air is decisively the brighter choice.

Mountain Air
Bancha
Mountain Air
Bancha
Dulux
Mountain Air
21GY 88/066 · LRV 88
Farrow & Ball
Bancha
LRV 13

At LRV 88 vs 13, Mountain Air is decisively the brighter choice.

Mountain Air
Pure White
Mountain Air
Pure White
Dulux
Mountain Air
21GY 88/066 · LRV 88

Mountain Air reads slightly lighter (LRV 88 vs 84), a gap that shows most in low-lit rooms.

Mountain Air
Artichoke
Mountain Air
Artichoke
Dulux
Mountain Air
21GY 88/066 · LRV 88
Sherwin-Williams
Artichoke
LRV 21

Mountain Air reflects far more light (LRV 88 vs 21), opening up a space where Artichoke encloses it.

Balboa Mist
Mountain Air
Balboa Mist
Mountain Air
Dulux
Mountain Air
21GY 88/066 · LRV 88

At LRV 88 vs 66, Mountain Air is decisively the brighter choice.

Mountain Air
Shoji White
Mountain Air
Shoji White
Dulux
Mountain Air
21GY 88/066 · LRV 88

At LRV 88 vs 74, Mountain Air is decisively the brighter choice.

Mountain Air
Snowbound
Mountain Air
Snowbound
Dulux
Mountain Air
21GY 88/066 · LRV 88
Sherwin-Williams
Snowbound
LRV 83

A 5-point LRV gap (88 vs 83) makes Mountain Air the marginally brighter of the two.

Mountain Air
Pigeon
Mountain Air
Pigeon
Dulux
Mountain Air
21GY 88/066 · LRV 88
Farrow & Ball
Pigeon
LRV 51

Mountain Air reflects far more light (LRV 88 vs 51), opening up a space where Pigeon encloses it.

Mountain Air
Pewter Green
Mountain Air
Pewter Green
Dulux
Mountain Air
21GY 88/066 · LRV 88

At LRV 88 vs 12, Mountain Air is decisively the brighter choice.

Mountain Air
Duck Green
Mountain Air
Duck Green
Dulux
Mountain Air
21GY 88/066 · LRV 88

At LRV 88 vs 8, Mountain Air is decisively the brighter choice.

Mountain Air
Skimming Stone
Mountain Air
Skimming Stone
Dulux
Mountain Air
21GY 88/066 · LRV 88

At LRV 88 vs 68, Mountain Air is decisively the brighter choice.

Mountain Air
Dix Blue
Mountain Air
Dix Blue
Dulux
Mountain Air
21GY 88/066 · LRV 88
Farrow & Ball
Dix Blue
LRV 41

Mountain Air reflects far more light (LRV 88 vs 41), opening up a space where Dix Blue encloses it.

Mountain Air
Hicks' Blue
Mountain Air
Hicks' Blue
Dulux
Mountain Air
21GY 88/066 · LRV 88

Mountain Air vs Hicks' Blue

Mountain Air
Slaked Lime Deep
Mountain Air
Slaked Lime Deep
Dulux
Mountain Air
21GY 88/066 · LRV 88

Mountain Air vs Slaked Lime Deep

Vintage Vogue
Mountain Air
Vintage Vogue
Mountain Air
Dulux
Mountain Air
21GY 88/066 · LRV 88

At LRV 88 vs 12, Mountain Air is decisively the brighter choice.

Mountain Air
Livid
Mountain Air
Livid
Dulux
Mountain Air
21GY 88/066 · LRV 88

Mountain Air vs Livid

Saybrook Sage
Mountain Air
Saybrook Sage
Mountain Air
Dulux
Mountain Air
21GY 88/066 · LRV 88

At LRV 88 vs 45, Mountain Air is decisively the brighter choice.

Mountain Air
Pale Green
Mountain Air
Pale Green
Dulux
Mountain Air
21GY 88/066 · LRV 88
RAL ClassicClassic
Pale Green
LRV 31

Mountain Air reflects far more light (LRV 88 vs 31), opening up a space where Pale Green encloses it.

Mountain Air
Pine Needle
Mountain Air
Pine Needle
Dulux
Mountain Air
21GY 88/066 · LRV 88

Mountain Air reflects far more light (LRV 88 vs 7), opening up a space where Pine Needle encloses it.