Tranquil Dawn vs Lullaby
Tranquil Dawn (Dulux) and Lullaby (Sherwin-Williams) come from different manufacturers. Hue-wise, Tranquil Dawn belongs to the green-grey family and Lullaby to the blue-grey family. The 10-point LRV gap — 65 for Lullaby vs 55 for Tranquil Dawn — means Lullaby will open up a space more effectively. Where Tranquil Dawn leans neutral, Lullaby reads cool — a distinction that shifts noticeably depending on the light source and surrounding finishes. ΔE 8.2 means they're clearly different, but not dramatically so — they'd pair well in the same room. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Tranquil Dawn vs Lullaby in Real Spaces
2 real rooms side by side. Tranquil Dawn and Lullaby 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
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. Lullaby reflects noticeably more light off the walls, making the space read more open than Tranquil Dawn.
Bathroom
Small bathrooms intensify color. A shade that seems quiet in a larger room can feel immersive when you're surrounded by it on four walls. Lullaby returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Tranquil Dawn vs Lullaby Simulated Comparison
5 simulated room previews — drag the slider on each to see Tranquil Dawn on one side and Lullaby 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.
White Dove reflects far more light (LRV 83 vs 55), opening up a space where Tranquil Dawn encloses it.
At LRV 69 vs 55, Ammonite is decisively the brighter choice.
Tranquil Dawn reflects far more light (LRV 55 vs 6), opening up a space where Iron Ore encloses it.
A 3-point LRV gap (55 vs 52) makes Tranquil Dawn the marginally brighter of the two.
At LRV 55 vs 30, Tranquil Dawn is decisively the brighter choice.
Tranquil Dawn reads slightly lighter (LRV 55 vs 52), a gap that shows most in low-lit rooms.
A 5-point LRV gap (60 vs 55) makes Agreeable Gray the marginally brighter of the two.
With LRVs of 58 and 55, the two reflect almost the same amount of light.
Tranquil Dawn reflects far more light (LRV 55 vs 27), opening up a space where Denim Drift encloses it.
A 12-point LRV gap (55 vs 43) makes Tranquil Dawn the marginally brighter of the two.
At LRV 55 vs 4, Tranquil Dawn is decisively the brighter choice.
Tranquil Dawn reflects far more light (LRV 55 vs 13), opening up a space where Bancha encloses it.
Tranquil Dawn reads slightly lighter (LRV 55 vs 44), a gap that shows most in low-lit rooms.
At LRV 84 vs 55, Pure White is decisively the brighter choice.
At LRV 55 vs 21, Tranquil Dawn is decisively the brighter choice.
Balboa Mist reads slightly lighter (LRV 66 vs 55), a gap that shows most in low-lit rooms.
Shoji White reflects far more light (LRV 74 vs 55), opening up a space where Tranquil Dawn encloses it.
Snowbound reflects far more light (LRV 83 vs 55), opening up a space where Tranquil Dawn encloses it.
Tranquil Dawn reflects far more light (LRV 55 vs 12), opening up a space where Pewter Green encloses it.
Skimming Stone reflects far more light (LRV 68 vs 55), opening up a space where Tranquil Dawn encloses it.
At LRV 55 vs 41, Tranquil Dawn is decisively the brighter choice.
At LRV 68 vs 55, Calamine is decisively the brighter choice.
At LRV 55 vs 25, Tranquil Dawn is decisively the brighter choice.
Tranquil Dawn reflects far more light (LRV 55 vs 12), opening up a space where Vintage Vogue encloses it.
Tranquil Dawn reads slightly lighter (LRV 55 vs 45), a gap that shows most in low-lit rooms.
At LRV 55 vs 31, Tranquil Dawn is decisively the brighter choice.
At LRV 55 vs 7, Tranquil Dawn is decisively the brighter choice.
At LRV 55 vs 24, Tranquil Dawn is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 57 vs 55), so neither reads brighter in a room.
At LRV 72 vs 55, Just Walnut is decisively the brighter choice.