Sea Urchin 2 vs Cathedral Glass
Sea Urchin 2 is a Dulux color while Cathedral Glass comes from PPG. Both sit in the blue-grey family, which is useful context if you're narrowing within a single hue direction. With LRVs of 28 and 29, they'll behave almost identically in terms of how much light they reflect back into a room. At ΔE 3.2, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Sea Urchin 2 vs Cathedral Glass Simulated Comparison
5 simulated room previews — drag the slider on each to see Sea Urchin 2 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 Sea Urchin 2 comparisons
See how Sea Urchin 2 stacks up against other well-photographed colors across different brands and tones.
