Gladiator Gray vs Tranquil Dawn
Gladiator Gray (Behr) and Tranquil Dawn (Dulux) come from different manufacturers. Hue-wise, Gladiator Gray belongs to the greige-grey family and Tranquil Dawn to the green-grey family. The 40-point LRV gap — 55 for Tranquil Dawn vs 15 for Gladiator Gray — means Tranquil Dawn will open up a space more effectively. Where Gladiator Gray leans yellow, Tranquil Dawn reads neutral — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 32.9 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 4 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Gladiator Gray vs Tranquil Dawn in Real Spaces
4 real rooms side by side. Seeing Gladiator Gray 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
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 Gladiator Gray.
Bedroom
Bedrooms are typically lit with warmer, lower light than the rest of the house — a condition that flatters warm tones and deepens cool ones. Tranquil Dawn returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Dining Room
Dining rooms often rely on warm incandescent or candlelight, which flatters warm undertones and mutes cool ones. The LRV gap is large enough that Tranquil Dawn will make the room feel meaningfully brighter than Gladiator Gray would.
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. Tranquil Dawn returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Gladiator Gray vs Tranquil Dawn Simulated Comparison
5 simulated room previews — drag the slider on each to see Gladiator Gray 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 Gladiator Gray comparisons
See how Gladiator Gray stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 15, White Dove is decisively the brighter choice.
Ammonite reflects far more light (LRV 69 vs 15), opening up a space where Gladiator Gray encloses it.
A 9-point LRV gap (15 vs 6) makes Gladiator Gray the marginally brighter of the two.
Purbeck Stone reflects far more light (LRV 52 vs 15), opening up a space where Gladiator Gray encloses it.
Evergreen Fog reflects far more light (LRV 30 vs 15), opening up a space where Gladiator Gray encloses it.
At LRV 52 vs 15, Mizzle is decisively the brighter choice.
Agreeable Gray reflects far more light (LRV 60 vs 15), opening up a space where Gladiator Gray encloses it.
At LRV 58 vs 15, Accessible Beige is decisively the brighter choice.
At LRV 27 vs 15, Denim Drift is decisively the brighter choice.
French Gray reflects far more light (LRV 43 vs 15), opening up a space where Gladiator Gray encloses it.
Gladiator Gray reads slightly lighter (LRV 15 vs 4), a gap that shows most in low-lit rooms.
Their light reflectance is nearly identical (LRV 15 vs 13), so neither reads brighter in a room.
At LRV 44 vs 15, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 15), opening up a space where Gladiator Gray encloses it.
Artichoke reads slightly lighter (LRV 21 vs 15), a gap that shows most in low-lit rooms.
At LRV 66 vs 15, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 15, Shoji White is decisively the brighter choice.
At LRV 83 vs 15, Snowbound is decisively the brighter choice.
A 3-point LRV gap (15 vs 12) makes Gladiator Gray the marginally brighter of the two.
At LRV 68 vs 15, Skimming Stone is decisively the brighter choice.
Dix Blue reflects far more light (LRV 41 vs 15), opening up a space where Gladiator Gray encloses it.
Calamine reflects far more light (LRV 68 vs 15), opening up a space where Gladiator Gray encloses it.
Treron reads slightly lighter (LRV 25 vs 15), a gap that shows most in low-lit rooms.
A 3-point LRV gap (15 vs 12) makes Gladiator Gray the marginally brighter of the two.
At LRV 45 vs 15, Saybrook Sage is decisively the brighter choice.
Pale Green reflects far more light (LRV 31 vs 15), opening up a space where Gladiator Gray encloses it.
Gladiator Gray reads slightly lighter (LRV 15 vs 7), a gap that shows most in low-lit rooms.
Cement grey reads slightly lighter (LRV 24 vs 15), a gap that shows most in low-lit rooms.
Guilford Green reflects far more light (LRV 57 vs 15), opening up a space where Gladiator Gray encloses it.
Just Walnut reflects far more light (LRV 72 vs 15), opening up a space where Gladiator Gray encloses it.