Thundercloud Gray vs Tranquil Dawn
Thundercloud Gray is a Benjamin Moore color while Tranquil Dawn comes from Dulux. Thundercloud Gray reads as blue-grey, while Tranquil Dawn reads as green-grey — two distinct hue families, not close cousins. At LRV 55 vs 50, Tranquil Dawn will read as the brighter of the two — a 5-point gap that matters most in north-facing or low-light rooms. The tonal difference — Thundercloud Gray's blue character against Tranquil Dawn's neutral — becomes most visible against white trim or in morning light. At ΔE 7.2, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Thundercloud Gray vs Tranquil Dawn in Real Spaces
2 real rooms side by side. Thundercloud Gray and Tranquil Dawn are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
Bathroom
Bathrooms amplify color — the enclosed space and reflective surfaces make what reads subtle elsewhere feel more present here. The brightness difference is modest but present — Tranquil Dawn gives the walls a little more lift.
Kitchen Cabinets
On cabinetry, undertone and temperature become more pronounced against countertops and hardware. The brightness difference is modest but present — Tranquil Dawn gives the walls a little more lift.
Color Details
Thundercloud Gray vs Tranquil Dawn Simulated Comparison
5 simulated room previews — drag the slider on each to see Thundercloud 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 Thundercloud Gray comparisons
See how Thundercloud Gray stacks up against other well-photographed colors across different brands and tones.
