Seattle Gray vs Tranquil Dawn
Seattle Gray (Benjamin Moore) and Tranquil Dawn (Dulux) come from different manufacturers. Seattle Gray reads as blue-grey, while Tranquil Dawn reads as green-grey — two distinct hue families, not close cousins. The 18-point LRV gap — 73 for Seattle Gray vs 55 for Tranquil Dawn — means Seattle Gray will open up a space more effectively. Where Seattle Gray leans blue, Tranquil Dawn reads neutral — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 13.1 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.
Seattle Gray vs Tranquil Dawn in Real Spaces
3 real rooms side by side. Seeing Seattle Gray 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. Seattle Gray reflects noticeably more light off the walls, making the space read more open than Tranquil Dawn.
Bedroom
Bedrooms are typically lit with warmer, lower light than the rest of the house — a condition that flatters warm tones and deepens cool ones. Seattle Gray returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Kitchen
Kitchens often have the harshest, most revealing light in the house — under-cabinet LEDs and overhead fixtures that strip away subtlety. Seattle Gray returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Seattle Gray vs Tranquil Dawn Simulated Comparison
5 simulated room previews — drag the slider on each to see Seattle Gray 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 Seattle Gray comparisons
See how Seattle Gray stacks up against other well-photographed colors across different brands and tones.
A 10-point LRV gap (83 vs 73) makes White Dove the marginally brighter of the two.
Seattle Gray reads slightly lighter (LRV 73 vs 69), a gap that shows most in low-lit rooms.
At LRV 73 vs 6, Seattle Gray is decisively the brighter choice.
Seattle Gray reflects far more light (LRV 73 vs 52), opening up a space where Purbeck Stone encloses it.
Seattle Gray reflects far more light (LRV 73 vs 30), opening up a space where Evergreen Fog encloses it.
At LRV 73 vs 52, Seattle Gray is decisively the brighter choice.
Seattle Gray reflects far more light (LRV 73 vs 60), opening up a space where Agreeable Gray encloses it.
At LRV 73 vs 58, Seattle Gray is decisively the brighter choice.
At LRV 73 vs 27, Seattle Gray is decisively the brighter choice.
Seattle Gray reflects far more light (LRV 73 vs 43), opening up a space where French Gray encloses it.
Seattle Gray reflects far more light (LRV 73 vs 4), opening up a space where Naval encloses it.
At LRV 73 vs 13, Seattle Gray is decisively the brighter choice.
At LRV 73 vs 44, Seattle Gray is decisively the brighter choice.
Pure White reads slightly lighter (LRV 84 vs 73), a gap that shows most in low-lit rooms.
Seattle Gray reflects far more light (LRV 73 vs 21), opening up a space where Artichoke encloses it.
A 7-point LRV gap (73 vs 66) makes Seattle Gray the marginally brighter of the two.
Their light reflectance is nearly identical (LRV 74 vs 73), so neither reads brighter in a room.
A 10-point LRV gap (83 vs 73) makes Snowbound the marginally brighter of the two.
At LRV 73 vs 12, Seattle Gray is decisively the brighter choice.
A 5-point LRV gap (73 vs 68) makes Seattle Gray the marginally brighter of the two.
Seattle Gray reflects far more light (LRV 73 vs 41), opening up a space where Dix Blue encloses it.
Seattle Gray reads slightly lighter (LRV 73 vs 68), a gap that shows most in low-lit rooms.
Seattle Gray reflects far more light (LRV 73 vs 25), opening up a space where Treron encloses it.
At LRV 73 vs 12, Seattle Gray is decisively the brighter choice.
At LRV 73 vs 45, Seattle Gray is decisively the brighter choice.
Seattle Gray reflects far more light (LRV 73 vs 31), opening up a space where Pale Green encloses it.
Seattle Gray reflects far more light (LRV 73 vs 7), opening up a space where Pine Needle encloses it.
Seattle Gray reflects far more light (LRV 73 vs 24), opening up a space where Cement grey encloses it.
Seattle Gray reflects far more light (LRV 73 vs 57), opening up a space where Guilford Green encloses it.
With LRVs of 73 and 72, the two reflect almost the same amount of light.