Storm Cloud Gray vs Cornwall Slate
Storm Cloud Gray is a Benjamin Moore color while Cornwall Slate comes from Sherwin-Williams. Both sit in the grey family, which is useful context if you're narrowing within a single hue direction. With LRVs of 29 and 29, they'll behave almost identically in terms of how much light they reflect back into a room. The tonal difference — Storm Cloud Gray's yellow character against Cornwall Slate's neutral — becomes most visible against white trim or in morning light. With a ΔE of 1.5, the difference is subtle — you'd need them side by side to reliably tell them apart. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Storm Cloud Gray vs Cornwall Slate in Real Spaces
3 real rooms side by side. Storm Cloud Gray and Cornwall Slate 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. In photos like these you're seeing the difference at its most direct. In a finished room, the distinction is there but not dramatic.
Bedroom
Bedroom walls are often seen under warm artificial light, a context that shifts both colors from how they look on a chip. The two are close enough that the choice comes down to finer qualities — undertone, texture, what the color sits next to.
Kitchen Cabinets
On cabinetry, undertone and temperature become more pronounced against countertops and hardware. The two are close enough that the choice comes down to finer qualities — undertone, texture, what the color sits next to.
Color Details
Storm Cloud Gray vs Cornwall Slate Simulated Comparison
5 simulated room previews — drag the slider on each to see Storm Cloud Gray on one side and Cornwall Slate 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 Storm Cloud Gray comparisons
See how Storm Cloud Gray stacks up against other well-photographed colors across different brands and tones.
White Dove reflects far more light (LRV 83 vs 29), opening up a space where Storm Cloud Gray encloses it.
At LRV 69 vs 29, Ammonite is decisively the brighter choice.
Storm Cloud Gray reflects far more light (LRV 29 vs 6), opening up a space where Iron Ore encloses it.
At LRV 52 vs 29, Purbeck Stone is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 30 vs 29), so neither reads brighter in a room.
Mizzle reflects far more light (LRV 52 vs 29), opening up a space where Storm Cloud Gray encloses it.
At LRV 60 vs 29, Agreeable Gray is decisively the brighter choice.
Accessible Beige reflects far more light (LRV 58 vs 29), opening up a space where Storm Cloud Gray encloses it.
With LRVs of 29 and 27, the two reflect almost the same amount of light.
At LRV 43 vs 29, French Gray is decisively the brighter choice.
At LRV 29 vs 4, Storm Cloud Gray is decisively the brighter choice.
Tranquil Dawn reflects far more light (LRV 55 vs 29), opening up a space where Storm Cloud Gray encloses it.
Storm Cloud Gray reflects far more light (LRV 29 vs 13), opening up a space where Bancha encloses it.
Hardwick White reflects far more light (LRV 44 vs 29), opening up a space where Storm Cloud Gray encloses it.
At LRV 84 vs 29, Pure White is decisively the brighter choice.
A 7-point LRV gap (29 vs 21) makes Storm Cloud Gray the marginally brighter of the two.
Balboa Mist reflects far more light (LRV 66 vs 29), opening up a space where Storm Cloud Gray encloses it.
Shoji White reflects far more light (LRV 74 vs 29), opening up a space where Storm Cloud Gray encloses it.
Snowbound reflects far more light (LRV 83 vs 29), opening up a space where Storm Cloud Gray encloses it.
Storm Cloud Gray reflects far more light (LRV 29 vs 12), opening up a space where Pewter Green encloses it.
Skimming Stone reflects far more light (LRV 68 vs 29), opening up a space where Storm Cloud Gray encloses it.
At LRV 41 vs 29, Dix Blue is decisively the brighter choice.
At LRV 68 vs 29, Calamine is decisively the brighter choice.
A 4-point LRV gap (29 vs 25) makes Storm Cloud Gray the marginally brighter of the two.
Storm Cloud Gray reflects far more light (LRV 29 vs 12), opening up a space where Vintage Vogue encloses it.
Saybrook Sage reflects far more light (LRV 45 vs 29), opening up a space where Storm Cloud Gray encloses it.
Their light reflectance is nearly identical (LRV 31 vs 29), so neither reads brighter in a room.
At LRV 29 vs 7, Storm Cloud Gray is decisively the brighter choice.
A 5-point LRV gap (29 vs 24) makes Storm Cloud Gray the marginally brighter of the two.
At LRV 57 vs 29, Guilford Green is decisively the brighter choice.