Mountain Air vs Tranquil Dawn
Mountain Air and Tranquil Dawn come from the same Dulux collection. Mountain Air reads as green-white, while Tranquil Dawn reads as green-grey — two distinct hue families, not close cousins. The 33-point LRV gap — 88 for Mountain Air vs 55 for Tranquil Dawn — means Mountain Air will open up a space more effectively. Where Mountain Air leans warm, Tranquil Dawn reads neutral — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 16.5 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 Tranquil Dawn in Real Spaces
3 real rooms side by side. Seeing Mountain Air and Tranquil Dawn 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 Tranquil Dawn.
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.
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 Tranquil Dawn would.
Color Details
Mountain Air vs Tranquil Dawn Simulated Comparison
5 simulated room previews — drag the slider on each to see Mountain Air on one side and Tranquil Dawn on the other.
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 reflects far more light (LRV 88 vs 69), opening up a space where Ammonite encloses it.
A 5-point LRV gap (88 vs 83) makes Mountain Air the marginally brighter of the two.
At LRV 88 vs 6, Mountain Air is decisively the brighter choice.
Mountain Air reflects far more light (LRV 88 vs 52), opening up a space where Purbeck Stone encloses it.
Mountain Air reflects far more light (LRV 88 vs 30), opening up a space where Evergreen Fog encloses it.
At LRV 88 vs 52, Mountain Air is decisively the brighter choice.
Mountain Air reflects far more light (LRV 88 vs 60), opening up a space where Agreeable Gray encloses it.
At LRV 88 vs 58, Mountain Air is decisively the brighter choice.
At LRV 88 vs 27, Mountain Air is decisively the brighter choice.
Mountain Air reflects far more light (LRV 88 vs 43), opening up a space where French Gray encloses it.
Mountain Air reflects far more light (LRV 88 vs 4), opening up a space where Naval encloses it.
At LRV 88 vs 13, Mountain Air is decisively the brighter choice.
At LRV 88 vs 44, Mountain Air is decisively the brighter choice.
Mountain Air reads slightly lighter (LRV 88 vs 84), a gap that shows most in low-lit rooms.
Mountain Air reflects far more light (LRV 88 vs 21), opening up a space where Artichoke encloses it.
At LRV 88 vs 66, Mountain Air is decisively the brighter choice.
At LRV 88 vs 74, Mountain Air is decisively the brighter choice.
A 5-point LRV gap (88 vs 83) makes Mountain Air the marginally brighter of the two.
Mountain Air reflects far more light (LRV 88 vs 51), opening up a space where Pigeon encloses it.
At LRV 88 vs 12, Mountain Air is decisively the brighter choice.
At LRV 88 vs 8, Mountain Air is decisively the brighter choice.
At LRV 88 vs 68, Mountain Air is decisively the brighter choice.
Mountain Air reflects far more light (LRV 88 vs 41), opening up a space where Dix Blue encloses it.
At LRV 88 vs 12, Mountain Air is decisively the brighter choice.
At LRV 88 vs 45, Mountain Air is decisively the brighter choice.
Mountain Air reflects far more light (LRV 88 vs 31), opening up a space where Pale Green encloses it.
Mountain Air reflects far more light (LRV 88 vs 7), opening up a space where Pine Needle encloses it.