Gladiator Gray vs Pewter Green
Where Gladiator Gray belongs to Behr's range, Pewter Green is a Sherwin-Williams color. Gladiator Gray reads as greige-grey, while Pewter Green reads as green-grey — two distinct hue families, not close cousins. Gladiator Gray (LRV 15) reflects noticeably more light than Pewter Green (LRV 12), a difference of 3 points that becomes especially apparent in rooms with limited natural light. Gladiator Gray runs yellow while Pewter Green is decidedly neutral, which means they'll respond very differently to warm vs cool light sources. The ΔE 5.9 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 6 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Gladiator Gray vs Pewter Green in Real Spaces
6 real rooms side by side. Gladiator Gray and Pewter Green 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 brightness difference is modest but present — Gladiator Gray gives the walls a little more lift.
Bedroom
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. Gladiator Gray reads slightly lighter here — a subtle but real difference in how open the space feels.
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. Gladiator Gray has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
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. Gladiator Gray reads slightly lighter here — a subtle but real difference in how open the space feels.
House
Seen across an entire facade, subtle tonal differences become pronounced. What reads as nearly the same on a chip often reads as clearly different at scale. Gladiator Gray reads slightly lighter here — a subtle but real difference in how open the space feels.
Front Door
A front door is a focal point — small color differences read clearly at this concentrated scale. The brightness difference is modest but present — Gladiator Gray gives the walls a little more lift.
Color Details
Gladiator Gray vs Pewter Green Simulated Comparison
5 simulated room previews — drag the slider on each to see Gladiator Gray on one side and Pewter Green 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.
At LRV 55 vs 15, Tranquil Dawn is decisively the brighter choice.
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.
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.