Tranquil Dawn vs S 3005-B20G
Tranquil Dawn (Dulux) and S 3005-B20G (NCS) come from different manufacturers. Hue-wise, Tranquil Dawn belongs to the green-grey family and S 3005-B20G to the blue-grey family. The 15-point LRV gap — 55 for Tranquil Dawn vs 40 for S 3005-B20G — means Tranquil Dawn will open up a space more effectively. Both share a neutral character, which means they'll respond to light and surrounding materials in similar ways. A ΔE of 11.1 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Tranquil Dawn vs S 3005-B20G Simulated Comparison
5 simulated room previews — drag the slider on each to see Tranquil Dawn on one side and S 3005-B20G 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.
