London Fog vs Tranquil Dawn
Where London Fog belongs to Benjamin Moore's range, Tranquil Dawn is a Dulux color. Hue-wise, London Fog belongs to the greige-grey family and Tranquil Dawn to the green-grey family. They have nearly identical light reflectance values (56 vs 55), so they'll read as similarly Medium in most lighting conditions. London Fog runs red while Tranquil Dawn is decidedly neutral, which means they'll respond very differently to warm vs cool light sources. The ΔE 4.7 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
London Fog vs Tranquil Dawn in Real Spaces
2 real rooms side by side. London Fog 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 are one of the few spaces where you're genuinely enclosed by the paint color, which makes the choice between these two more consequential. London Fog brings more warmth to the space, while Tranquil Dawn keeps things cooler and crisper.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. London Fog brings more warmth to the space, while Tranquil Dawn keeps things cooler and crisper.
Color Details
London Fog vs Tranquil Dawn Simulated Comparison
5 simulated room previews — drag the slider on each to see London Fog 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 London Fog comparisons
See how London Fog stacks up against other well-photographed colors across different brands and tones.
