Purbeck Stone vs Cool Slate
Where Purbeck Stone belongs to Farrow & Ball's range, Cool Slate is a PPG color. These are both greige-greys, so the question isn't which hue to choose — it's where within greige-grey to land. Cool Slate (LRV 62) reflects noticeably more light than Purbeck Stone (LRV 52), a difference of 10 points that becomes especially apparent in rooms with limited natural light. The ΔE 5.3 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. 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 Cool Slate Simulated Comparison
5 simulated room previews — drag the slider on each to see Purbeck Stone on one side and Cool 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 Purbeck Stone comparisons
See how Purbeck Stone stacks up against other well-photographed colors across different brands and tones.
