Blue Spa vs Tranquil Dawn
Where Blue Spa belongs to Benjamin Moore's range, Tranquil Dawn is a Dulux color. Hue-wise, Blue Spa belongs to the blue family and Tranquil Dawn to the green-grey family. Tranquil Dawn (LRV 55) reflects noticeably more light than Blue Spa (LRV 29), a difference of 26 points that becomes especially apparent in rooms with limited natural light. Blue Spa runs blue while Tranquil Dawn is decidedly neutral, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 30.5, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Blue Spa vs Tranquil Dawn Simulated Comparison
5 simulated room previews — drag the slider on each to see Blue Spa 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 Blue Spa comparisons
See how Blue Spa stacks up against other well-photographed colors across different brands and tones.
White Dove reflects far more light (LRV 83 vs 29), opening up a space where Blue Spa encloses it.
At LRV 52 vs 29, Purbeck Stone is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 30 vs 29), so neither reads brighter in a room.
At LRV 60 vs 29, Agreeable Gray is decisively the brighter choice.
Accessible Beige reflects far more light (LRV 58 vs 29), opening up a space where Blue Spa encloses it.
With LRVs of 29 and 27, the two reflect almost the same amount of light.
At LRV 43 vs 29, French Gray is decisively the brighter choice.
Hardwick White reflects far more light (LRV 44 vs 29), opening up a space where Blue Spa encloses it.
At LRV 84 vs 29, Pure White is decisively the brighter choice.
Balboa Mist reflects far more light (LRV 66 vs 29), opening up a space where Blue Spa encloses it.
Shoji White reflects far more light (LRV 74 vs 29), opening up a space where Blue Spa encloses it.
Blue Spa reflects far more light (LRV 29 vs 12), opening up a space where Pewter Green encloses it.
Skimming Stone reflects far more light (LRV 68 vs 29), opening up a space where Blue Spa encloses it.
Blue Spa reflects far more light (LRV 29 vs 12), opening up a space where Vintage Vogue encloses it.
Saybrook Sage reflects far more light (LRV 45 vs 29), opening up a space where Blue Spa encloses it.
Their light reflectance is nearly identical (LRV 31 vs 29), so neither reads brighter in a room.
At LRV 29 vs 7, Blue Spa is decisively the brighter choice.
A 5-point LRV gap (29 vs 24) makes Blue Spa the marginally brighter of the two.
At LRV 57 vs 29, Guilford Green is decisively the brighter choice.
At LRV 72 vs 29, Just Walnut is decisively the brighter choice.