Brush Blue vs Tranquil Dawn
Brush Blue (Benjamin Moore) and Tranquil Dawn (Dulux) come from different manufacturers. Hue-wise, Brush Blue belongs to the blue-grey family and Tranquil Dawn to the green-grey family. The 45-point LRV gap — 55 for Tranquil Dawn vs 10 for Brush Blue — means Tranquil Dawn will open up a space more effectively. Where Brush Blue leans blue, Tranquil Dawn reads neutral — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 46.6 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Brush Blue vs Tranquil Dawn in Real Spaces
2 real rooms side by side. Seeing Brush Blue 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. Tranquil Dawn reflects noticeably more light off the walls, making the space read more open than Brush Blue.
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. Tranquil Dawn returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Brush Blue vs Tranquil Dawn Simulated Comparison
5 simulated room previews — drag the slider on each to see Brush Blue 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 Brush Blue comparisons
See how Brush Blue stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 10, White Dove is decisively the brighter choice.
Ammonite reflects far more light (LRV 69 vs 10), opening up a space where Brush Blue encloses it.
A 4-point LRV gap (10 vs 6) makes Brush Blue the marginally brighter of the two.
Purbeck Stone reflects far more light (LRV 52 vs 10), opening up a space where Brush Blue encloses it.
Evergreen Fog reflects far more light (LRV 30 vs 10), opening up a space where Brush Blue encloses it.
At LRV 52 vs 10, Mizzle is decisively the brighter choice.
Agreeable Gray reflects far more light (LRV 60 vs 10), opening up a space where Brush Blue encloses it.
At LRV 58 vs 10, Accessible Beige is decisively the brighter choice.
At LRV 27 vs 10, Denim Drift is decisively the brighter choice.
French Gray reflects far more light (LRV 43 vs 10), opening up a space where Brush Blue encloses it.
Brush Blue reads slightly lighter (LRV 10 vs 4), a gap that shows most in low-lit rooms.
A 4-point LRV gap (13 vs 10) makes Bancha the marginally brighter of the two.
At LRV 44 vs 10, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 10), opening up a space where Brush Blue encloses it.
Artichoke reads slightly lighter (LRV 21 vs 10), a gap that shows most in low-lit rooms.
At LRV 66 vs 10, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 10, Shoji White is decisively the brighter choice.
At LRV 83 vs 10, Snowbound is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 12 vs 10), so neither reads brighter in a room.
At LRV 68 vs 10, Skimming Stone is decisively the brighter choice.
Dix Blue reflects far more light (LRV 41 vs 10), opening up a space where Brush Blue encloses it.
Calamine reflects far more light (LRV 68 vs 10), opening up a space where Brush Blue encloses it.
Treron reflects far more light (LRV 25 vs 10), opening up a space where Brush Blue encloses it.
Their light reflectance is nearly identical (LRV 12 vs 10), so neither reads brighter in a room.
At LRV 45 vs 10, Saybrook Sage is decisively the brighter choice.
Pale Green reflects far more light (LRV 31 vs 10), opening up a space where Brush Blue encloses it.
With LRVs of 10 and 7, the two reflect almost the same amount of light.
Cement grey reflects far more light (LRV 24 vs 10), opening up a space where Brush Blue encloses it.
Guilford Green reflects far more light (LRV 57 vs 10), opening up a space where Brush Blue encloses it.
Just Walnut reflects far more light (LRV 72 vs 10), opening up a space where Brush Blue encloses it.