Charleston Gray vs Keystone Gray
Where Charleston Gray belongs to Farrow & Ball's range, Keystone Gray is a Sherwin-Williams color. These are both greige-greys, so the question isn't which hue to choose — it's where within greige-grey to land. They have nearly identical light reflectance values (30 vs 29), so they'll read as similarly Medium in most lighting conditions. Both lean warm, so they'll behave similarly in mixed or changing light conditions. At ΔE 2.3, these are close — the kind of difference that matters when choosing between them, but doesn't read strongly in a finished room. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Charleston Gray vs Keystone Gray in Real Spaces
1 real room side by side. Charleston Gray and Keystone 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.
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. At this scale the difference is subtle — you'd need them side by side, as shown here, to reliably tell them apart.
Color Details
Charleston Gray vs Keystone Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see Charleston Gray on one side and Keystone 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 Charleston Gray comparisons
See how Charleston Gray stacks up against other well-photographed colors across different brands and tones.
At LRV 69 vs 30, Ammonite is decisively the brighter choice.
White Dove reflects far more light (LRV 83 vs 30), opening up a space where Charleston Gray encloses it.
Charleston Gray reflects far more light (LRV 30 vs 6), opening up a space where Iron Ore encloses it.
At LRV 52 vs 30, Purbeck Stone is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 30 vs 30), so neither reads brighter in a room.
Mizzle reflects far more light (LRV 52 vs 30), opening up a space where Charleston Gray encloses it.
At LRV 60 vs 30, Agreeable Gray is decisively the brighter choice.
Accessible Beige reflects far more light (LRV 58 vs 30), opening up a space where Charleston Gray encloses it.
Charleston Gray reads slightly lighter (LRV 30 vs 27), a gap that shows most in low-lit rooms.
At LRV 43 vs 30, French Gray is decisively the brighter choice.
At LRV 30 vs 4, Charleston Gray is decisively the brighter choice.
Tranquil Dawn reflects far more light (LRV 55 vs 30), opening up a space where Charleston Gray encloses it.
Charleston Gray reflects far more light (LRV 30 vs 13), opening up a space where Bancha encloses it.
Hardwick White reflects far more light (LRV 44 vs 30), opening up a space where Charleston Gray encloses it.
At LRV 84 vs 30, Pure White is decisively the brighter choice.
A 9-point LRV gap (30 vs 21) makes Charleston Gray the marginally brighter of the two.
Balboa Mist reflects far more light (LRV 66 vs 30), opening up a space where Charleston Gray encloses it.
Shoji White reflects far more light (LRV 74 vs 30), opening up a space where Charleston Gray encloses it.
Snowbound reflects far more light (LRV 83 vs 30), opening up a space where Charleston Gray encloses it.
At LRV 51 vs 30, Pigeon is decisively the brighter choice.
Charleston Gray reflects far more light (LRV 30 vs 12), opening up a space where Pewter Green encloses it.
Charleston Gray reflects far more light (LRV 30 vs 8), opening up a space where Duck Green encloses it.
Skimming Stone reflects far more light (LRV 68 vs 30), opening up a space where Charleston Gray encloses it.
A 11-point LRV gap (41 vs 30) makes Dix Blue the marginally brighter of the two.
Charleston Gray reflects far more light (LRV 30 vs 12), opening up a space where Vintage Vogue encloses it.
Saybrook Sage reflects far more light (LRV 45 vs 30), opening up a space where Charleston Gray encloses it.
Their light reflectance is nearly identical (LRV 31 vs 30), so neither reads brighter in a room.