Purbeck Stone vs Cay
Where Purbeck Stone belongs to Farrow & Ball's range, Cay is a Sherwin-Williams color. Purbeck Stone reads as greige-grey, while Cay reads as blue — two distinct hue families, not close cousins. Cay (LRV 58) reflects noticeably more light than Purbeck Stone (LRV 52), a difference of 6 points that becomes especially apparent in rooms with limited natural light. Purbeck Stone runs warm while Cay is decidedly cool, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 18.8, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Purbeck Stone vs Cay Simulated Comparison
5 simulated room previews — drag the slider on each to see Purbeck Stone on one side and Cay 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 Purbeck Stone comparisons
See how Purbeck Stone stacks up against other well-photographed colors across different brands and tones.
