Pewter Green vs Thunder Gray
Both are Sherwin-Williams colors. Hue-wise, Pewter Green belongs to the green-grey family and Thunder Gray to the grey family. At LRV 12 vs 9, Pewter Green will read as the brighter of the two — a 3-point gap that matters most in north-facing or low-light rooms. They share a neutral quality — useful to know if you're layering them in the same space. At ΔE 6.6, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below you'll find 5 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Pewter Green vs Thunder Gray in Real Spaces
5 real rooms side by side. Pewter Green and Thunder Gray 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
Living rooms test a color across a full range of conditions — morning sun, afternoon shade, and evening lamp light all shift how both of these read. Pewter Green has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Bedroom
Bedroom walls are often seen under warm artificial light, a context that shifts both colors from how they look on a chip. The brightness difference is modest but present — Pewter Green gives the walls a little more lift.
Kitchen
Kitchen lighting tends to be bright and directional, which sharpens contrast and makes undertone differences more apparent. The brightness difference is modest but present — Pewter Green gives the walls a little more lift.
House
At full exterior scale, the difference between these two colors becomes much easier to judge than from a small chip. The brightness difference is modest but present — Pewter Green gives the walls a little more lift.
Kitchen Cabinets
On cabinetry, undertone and temperature become more pronounced against countertops and hardware. The brightness difference is modest but present — Pewter Green gives the walls a little more lift.
Color Details
Pewter Green vs Thunder Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see Pewter Green on one side and Thunder Gray 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 Pewter Green comparisons
See how Pewter Green stacks up against other well-photographed colors across different brands and tones.
At LRV 69 vs 12, Ammonite is decisively the brighter choice.
White Dove reflects far more light (LRV 83 vs 12), opening up a space where Pewter Green encloses it.
Pewter Green reads slightly lighter (LRV 12 vs 6), a gap that shows most in low-lit rooms.
At LRV 52 vs 12, Purbeck Stone is decisively the brighter choice.
At LRV 30 vs 12, Evergreen Fog is decisively the brighter choice.
Mizzle reflects far more light (LRV 52 vs 12), opening up a space where Pewter Green encloses it.
At LRV 60 vs 12, Agreeable Gray is decisively the brighter choice.
Accessible Beige reflects far more light (LRV 58 vs 12), opening up a space where Pewter Green encloses it.
Denim Drift reflects far more light (LRV 27 vs 12), opening up a space where Pewter Green encloses it.
At LRV 43 vs 12, French Gray is decisively the brighter choice.
A 7-point LRV gap (12 vs 4) makes Pewter Green the marginally brighter of the two.
Tranquil Dawn reflects far more light (LRV 55 vs 12), opening up a space where Pewter Green encloses it.
With LRVs of 13 and 12, the two reflect almost the same amount of light.
Hardwick White reflects far more light (LRV 44 vs 12), opening up a space where Pewter Green encloses it.
At LRV 84 vs 12, Pure White is decisively the brighter choice.
A 10-point LRV gap (21 vs 12) makes Artichoke the marginally brighter of the two.
Balboa Mist reflects far more light (LRV 66 vs 12), opening up a space where Pewter Green encloses it.
Shoji White reflects far more light (LRV 74 vs 12), opening up a space where Pewter Green encloses it.
Snowbound reflects far more light (LRV 83 vs 12), opening up a space where Pewter Green encloses it.
At LRV 51 vs 12, Pigeon is decisively the brighter choice.
Pewter Green reads slightly lighter (LRV 12 vs 8), a gap that shows most in low-lit rooms.
Skimming Stone reflects far more light (LRV 68 vs 12), opening up a space where Pewter Green encloses it.
At LRV 41 vs 12, Dix Blue is decisively the brighter choice.
With LRVs of 12 and 12, the two reflect almost the same amount of light.
Saybrook Sage reflects far more light (LRV 45 vs 12), opening up a space where Pewter Green encloses it.
At LRV 31 vs 12, Pale Green is decisively the brighter choice.
A 5-point LRV gap (12 vs 7) makes Pewter Green the marginally brighter of the two.