Tranquil Dawn vs RAL 840-5
Where Tranquil Dawn belongs to Dulux's range, RAL 840-5 is a RAL Effect color. These are both green-greys, so the question isn't which hue to choose — it's where within green-grey to land. Tranquil Dawn (LRV 55) reflects noticeably more light than RAL 840-5 (LRV 11), a difference of 44 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 39.1, 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 4 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Tranquil Dawn vs RAL 840-5 in Real Spaces
4 real rooms side by side. Seeing Tranquil Dawn and RAL 840-5 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 RAL 840-5 would.
Bedroom
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. Tranquil Dawn reflects noticeably more light off the walls, making the space read more open than RAL 840-5.
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 840-5.
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 840-5.
Color Details
Tranquil Dawn vs RAL 840-5 Simulated Comparison
5 simulated room previews — drag the slider on each to see Tranquil Dawn on one side and RAL 840-5 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.
