Tranquil Dawn vs RAL 840-3
Where Tranquil Dawn belongs to Dulux's range, RAL 840-3 is a RAL Effect color. Hue-wise, Tranquil Dawn belongs to the green-grey family and RAL 840-3 to the greige-grey family. Tranquil Dawn (LRV 55) reflects noticeably more light than RAL 840-3 (LRV 46), a difference of 9 points that becomes especially apparent in rooms with limited natural light. The ΔE 6.2 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 4 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Tranquil Dawn vs RAL 840-3 in Real Spaces
4 real rooms side by side. Tranquil Dawn and RAL 840-3 are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
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 RAL 840-3 would.
Kitchen
In a kitchen, colors are seen under bright task lighting that amplifies undertones — what reads neutral elsewhere can show its hand here. Tranquil Dawn reflects noticeably more light off the walls, making the space read more open than RAL 840-3.
Bathroom
Bathrooms are one of the few spaces where you're genuinely enclosed by the paint color, which makes the choice between these two more consequential. Tranquil Dawn reflects noticeably more light off the walls, making the space read more open than RAL 840-3.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Tranquil Dawn reflects noticeably more light off the walls, making the space read more open than RAL 840-3.
Color Details
Tranquil Dawn vs RAL 840-3 Simulated Comparison
5 simulated room previews — drag the slider on each to see Tranquil Dawn on one side and RAL 840-3 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.
