Tranquil Dawn vs Iron Grey
Tranquil Dawn (Dulux) and Iron Grey (Jotun) come from different manufacturers. Hue-wise, Tranquil Dawn belongs to the green-grey family and Iron Grey to the grey family. The 16-point LRV gap — 55 for Tranquil Dawn vs 39 for Iron Grey — 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 10.2 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Tranquil Dawn vs Iron Grey in Real Spaces
1 real room side by side. Seeing Tranquil Dawn and Iron Grey 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 Iron Grey.
Color Details
Tranquil Dawn vs Iron Grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Tranquil Dawn on one side and Iron Grey 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.
