Tranquil Dawn vs Oslo
Tranquil Dawn (Dulux) and Oslo (Jotun) come from different manufacturers. Hue-wise, Tranquil Dawn belongs to the green-grey family and Oslo to the blue-grey family. The 44-point LRV gap — 55 for Tranquil Dawn vs 11 for Oslo — means Tranquil Dawn will open up a space more effectively. Where Tranquil Dawn leans neutral, Oslo reads cool — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 39.3 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Tranquil Dawn vs Oslo in Real Spaces
3 real rooms side by side. Seeing Tranquil Dawn and Oslo 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 Oslo.
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.
Dining Room
Dining rooms often rely on warm incandescent or candlelight, which flatters warm undertones and mutes cool ones. The LRV gap is large enough that Tranquil Dawn will make the room feel meaningfully brighter than Oslo would.
Color Details
Tranquil Dawn vs Oslo Simulated Comparison
5 simulated room previews — drag the slider on each to see Tranquil Dawn on one side and Oslo 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 Tranquil Dawn comparisons
See how Tranquil Dawn stacks up against other well-photographed colors across different brands and tones.
