Thundercloud Gray vs Gray Frost
Thundercloud Gray is a Benjamin Moore color while Gray Frost comes from PPG. Both sit in the blue-grey family, which is useful context if you're narrowing within a single hue direction. With LRVs of 50 and 52, they'll behave almost identically in terms of how much light they reflect back into a room. With a ΔE of 0.9, the difference is subtle — you'd need them side by side to reliably tell them apart. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Thundercloud Gray vs Gray Frost in Real Spaces
1 real room side by side. Thundercloud Gray and Gray Frost 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.
Bathroom
Bathrooms amplify color — the enclosed space and reflective surfaces make what reads subtle elsewhere feel more present here. The two are close enough that the choice comes down to finer qualities — undertone, texture, what the color sits next to.
Color Details
Thundercloud Gray vs Gray Frost Simulated Comparison
5 simulated room previews — drag the slider on each to see Thundercloud Gray on one side and Gray Frost 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 Thundercloud Gray comparisons
See how Thundercloud Gray stacks up against other well-photographed colors across different brands and tones.
White Dove reflects far more light (LRV 83 vs 50), opening up a space where Thundercloud Gray encloses it.
At LRV 69 vs 50, Ammonite is decisively the brighter choice.
Thundercloud Gray reflects far more light (LRV 50 vs 6), opening up a space where Iron Ore encloses it.
Their light reflectance is nearly identical (LRV 52 vs 50), so neither reads brighter in a room.
At LRV 50 vs 30, Thundercloud Gray is decisively the brighter choice.
With LRVs of 52 and 50, the two reflect almost the same amount of light.
A 10-point LRV gap (60 vs 50) makes Agreeable Gray the marginally brighter of the two.
Accessible Beige reads slightly lighter (LRV 58 vs 50), a gap that shows most in low-lit rooms.
Thundercloud Gray reflects far more light (LRV 50 vs 27), opening up a space where Denim Drift encloses it.
A 7-point LRV gap (50 vs 43) makes Thundercloud Gray the marginally brighter of the two.
At LRV 50 vs 4, Thundercloud Gray is decisively the brighter choice.
Tranquil Dawn reads slightly lighter (LRV 55 vs 50), a gap that shows most in low-lit rooms.
Thundercloud Gray reflects far more light (LRV 50 vs 13), opening up a space where Bancha encloses it.
Thundercloud Gray reads slightly lighter (LRV 50 vs 44), a gap that shows most in low-lit rooms.
At LRV 84 vs 50, Pure White is decisively the brighter choice.
At LRV 50 vs 21, Thundercloud Gray is decisively the brighter choice.
Balboa Mist reflects far more light (LRV 66 vs 50), opening up a space where Thundercloud Gray encloses it.
Shoji White reflects far more light (LRV 74 vs 50), opening up a space where Thundercloud Gray encloses it.
Snowbound reflects far more light (LRV 83 vs 50), opening up a space where Thundercloud Gray encloses it.
Thundercloud Gray reflects far more light (LRV 50 vs 12), opening up a space where Pewter Green encloses it.
Skimming Stone reflects far more light (LRV 68 vs 50), opening up a space where Thundercloud Gray encloses it.
A 9-point LRV gap (50 vs 41) makes Thundercloud Gray the marginally brighter of the two.
At LRV 68 vs 50, Calamine is decisively the brighter choice.
At LRV 50 vs 25, Thundercloud Gray is decisively the brighter choice.
Thundercloud Gray reflects far more light (LRV 50 vs 12), opening up a space where Vintage Vogue encloses it.
Thundercloud Gray reads slightly lighter (LRV 50 vs 45), a gap that shows most in low-lit rooms.
At LRV 50 vs 31, Thundercloud Gray is decisively the brighter choice.
At LRV 50 vs 7, Thundercloud Gray is decisively the brighter choice.
At LRV 50 vs 24, Thundercloud Gray is decisively the brighter choice.
A 7-point LRV gap (57 vs 50) makes Guilford Green the marginally brighter of the two.