Sapphire Splendor vs Tranquil Dawn
Both from Dulux's palette. Sapphire Splendor reads as blue-grey, while Tranquil Dawn reads as green-grey — two distinct hue families, not close cousins. Tranquil Dawn (LRV 55) reflects noticeably more light than Sapphire Splendor (LRV 5), a difference of 50 points that becomes especially apparent in rooms with limited natural light. Sapphire Splendor runs cool while Tranquil Dawn is decidedly neutral, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 51.8, 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.
Sapphire Splendor vs Tranquil Dawn in Real Spaces
4 real rooms side by side. Seeing Sapphire Splendor and Tranquil Dawn 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 Sapphire Splendor 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 Sapphire Splendor.
Dining Room
A dining room lit by a dimmed pendant or candles is one of the most forgiving environments for paint — warm light softens almost everything. Tranquil Dawn returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
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 Sapphire Splendor.
Color Details
Sapphire Splendor vs Tranquil Dawn Simulated Comparison
5 simulated room previews — drag the slider on each to see Sapphire Splendor on one side and Tranquil Dawn 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 Sapphire Splendor comparisons
See how Sapphire Splendor stacks up against other well-photographed colors across different brands and tones.
Ammonite reflects far more light (LRV 69 vs 5), opening up a space where Sapphire Splendor encloses it.
At LRV 83 vs 5, White Dove is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 6 vs 5), so neither reads brighter in a room.
Purbeck Stone reflects far more light (LRV 52 vs 5), opening up a space where Sapphire Splendor encloses it.
Evergreen Fog reflects far more light (LRV 30 vs 5), opening up a space where Sapphire Splendor encloses it.
At LRV 52 vs 5, Mizzle is decisively the brighter choice.
Agreeable Gray reflects far more light (LRV 60 vs 5), opening up a space where Sapphire Splendor encloses it.
At LRV 58 vs 5, Accessible Beige is decisively the brighter choice.
At LRV 27 vs 5, Denim Drift is decisively the brighter choice.
French Gray reflects far more light (LRV 43 vs 5), opening up a space where Sapphire Splendor encloses it.
With LRVs of 5 and 4, the two reflect almost the same amount of light.
A 8-point LRV gap (13 vs 5) makes Bancha the marginally brighter of the two.
At LRV 44 vs 5, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 5), opening up a space where Sapphire Splendor encloses it.
Artichoke reflects far more light (LRV 21 vs 5), opening up a space where Sapphire Splendor encloses it.
At LRV 66 vs 5, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 5, Shoji White is decisively the brighter choice.
At LRV 83 vs 5, Snowbound is decisively the brighter choice.
Pigeon reflects far more light (LRV 51 vs 5), opening up a space where Sapphire Splendor encloses it.
A 6-point LRV gap (12 vs 5) makes Pewter Green the marginally brighter of the two.
Their light reflectance is nearly identical (LRV 8 vs 5), so neither reads brighter in a room.
At LRV 68 vs 5, Skimming Stone is decisively the brighter choice.
Dix Blue reflects far more light (LRV 41 vs 5), opening up a space where Sapphire Splendor encloses it.
A 7-point LRV gap (12 vs 5) makes Vintage Vogue the marginally brighter of the two.
At LRV 45 vs 5, Saybrook Sage is decisively the brighter choice.
Pale Green reflects far more light (LRV 31 vs 5), opening up a space where Sapphire Splendor encloses it.
With LRVs of 7 and 5, the two reflect almost the same amount of light.