Dulux Mountain Air 21GY 88/066

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Dulux Mountain Air reviews (9 photos)
What are Dulux Mountain Air undertones?
Is Mountain Air 21GY 88/066 cool or warm?
How light temperature affects on Mountain Air
Monochromatic color scheme
Complementary color scheme
Color comparison and matching
Color codes
Color equivalents

Code:	21GY 88/066
Name:	Mountain Air
Brand:	Dulux

What color is Dulux Mountain Air?

Dulux Mountain Air 21GY 88/066 is a very pale, softly muted green with a noticeable yellow cast that keeps it from reading icy or blue. Its high lightness gives walls an airy, lightly washed appearance, while the modest green saturation remains visible rather than fading into plain off-white. In daylight, Mountain Air can look fresh and botanical; under warmer artificial light, its yellow-green undertone is likely to come forward more clearly. It suits kitchens, garden-facing rooms, and bedrooms where a gentle color is wanted without using a neutral beige. Pair it with chalky white trim, light oak, woven natural fibres, or muted clay and olive accents for a grounded palette.

Dulux Mountain Air reviews (9 photos)

View the photos of real spaces painted with this green that were not included in specific categories. Close-ups, painted furniture, storages and dressers, hallways, stairs and ceilings.

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Dulux Mountain Air utility room makeover

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What are Dulux Mountain Air undertones?

Mountain Air is a near-white, very muted green-tinted off-white. The HEX sample has a subtle yellow-green bias, but its low chroma turns that hue into a neutral-looking color rather than a clear yellow-green. Warm light can make it look more olive and earthy, while cool daylight usually makes the green direction easier to notice.

HEX value:

#ECF1E2

RGB code:

236, 241, 226

Is Dulux Mountain Air cool or warm?

warm

cool

With a hue of 80°, this Green leans warm, but it is close to neutral and can read cooler in some light.

21GY 88/066 Mountain Air HSL code: 80, 35%, 92%

Hue - degree on a color wheel from 0 to 360. 0 is red, 120 is green, and 240 is blue.
Saturation is expressed as a percentage. At 0%, it appears as a shade of grey, and at 100%, it is in full color.
Lightness is also a percentage value. 0% is black, and 100% is white.

How light temperature affects Mountain Air

Natural Lighting. During the day, natural light shifts from about 2000 K at sunrise/sunset to 5500–6500 K at noon.

Sunrise

Morning

Noon

Afternoon

Sunset

In addition, natural-light temperature depends on its direction:

Direction of sunlight	Visible temp.	Hue	Duration
North	Cool	Bluish	All day
East	Warm	Yellow	Before noon
West	Warm	Orange-red	After noon
South	Warm	Orange-yellow	All day

Artificial Lighting. When choosing bulbs, pay attention to their color temperature in Kelvins.
Use the slider to see how this Green shade looks under different lighting:

2000K

3000K

4000K

5000K

6000K

7000K

Coordinating colors.
Colors that go with Dulux Mountain Air:

Monochromatic color scheme

This scheme consists of various shades, tints, and tones of a single color. While it offers a perfect combination of hues, without accent décor it may become monotonous.

Darker shades

21GY 88/066
Mountain Air

Complementary color scheme

This color scheme is a combination of two shades that are opposite each other on the color wheel. The high contrast between these colors creates a vibrant and dynamic visual effect. For the color Mountain Air with a orange hue, complementary colors are those with a blue hue close to 260, such as Dulux Brooklyn Nights 1 and Plum Compote.

21GY 88/066
Mountain Air

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