St. Pauls Blue vs Volcanic Ash
St. Pauls Blue is a Jotun color while Volcanic Ash comes from PPG. Hue-wise, St. Pauls Blue belongs to the blue-grey family and Volcanic Ash to the grey family. With LRVs of 17 and 18, they'll behave almost identically in terms of how much light they reflect back into a room. With a ΔE of 2.0, the difference is subtle — you'd need them side by side to reliably tell them apart. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
St. Pauls Blue vs Volcanic Ash Simulated Comparison
5 simulated room previews — drag the slider on each to see St. Pauls Blue on one side and Volcanic Ash 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 St. Pauls Blue comparisons
See how St. Pauls Blue stacks up against other well-photographed colors across different brands and tones.
