Portsmouth Olive vs Tranquil Dawn
Portsmouth Olive is a Behr color while Tranquil Dawn comes from Dulux. Hue-wise, Portsmouth Olive belongs to the beige-greige family and Tranquil Dawn to the green-grey family. At LRV 55 vs 14, Tranquil Dawn will read as the brighter of the two — a 41-point gap that matters most in north-facing or low-light rooms. The tonal difference — Portsmouth Olive's yellow character against Tranquil Dawn's neutral — becomes most visible against white trim or in morning light. At ΔE 38.2, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Portsmouth Olive vs Tranquil Dawn in Real Spaces
1 real room side by side. Seeing Portsmouth Olive 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.
Home Office
In a home office, wall color sits in your peripheral vision for hours at a time, so temperature and undertone matter more than you might expect. The LRV gap is large enough that Tranquil Dawn will make the room feel meaningfully brighter than Portsmouth Olive would.
Color Details
Portsmouth Olive vs Tranquil Dawn Simulated Comparison
5 simulated room previews — drag the slider on each to see Portsmouth Olive 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 Portsmouth Olive comparisons
See how Portsmouth Olive stacks up against other well-photographed colors across different brands and tones.










































