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.
