James vs Cathedral Glass
James (Little Greene) and Cathedral Glass (PPG) come from different manufacturers. These are both blue-greys, so the question isn't which hue to choose — it's where within blue-grey to land. Their light reflectance values are nearly the same — 30 vs 29 — so neither will read significantly brighter or darker than the other. ΔE 7.1 means they're clearly different, but not dramatically so — they'd pair well in the same room. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
James vs Cathedral Glass Simulated Comparison
5 simulated room previews — drag the slider on each to see James on one side and Cathedral Glass 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 James comparisons
See how James stacks up against other well-photographed colors across different brands and tones.







































