Tranquil Dawn vs Vast Lake
Both from Dulux's palette. Tranquil Dawn reads as green-grey, while Vast Lake reads as blue — two distinct hue families, not close cousins. Tranquil Dawn (LRV 55) reflects noticeably more light than Vast Lake (LRV 31), a difference of 24 points that becomes especially apparent in rooms with limited natural light. Tranquil Dawn runs neutral while Vast Lake is decidedly cool, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 23.3, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Tranquil Dawn vs Vast Lake in Real Spaces
1 real room side by side. Seeing Tranquil Dawn and Vast Lake 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
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. The LRV gap is large enough that Tranquil Dawn will make the room feel meaningfully brighter than Vast Lake would.
Color Details
Tranquil Dawn vs Vast Lake Simulated Comparison
5 simulated room previews — drag the slider on each to see Tranquil Dawn on one side and Vast Lake 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.
