Sea Urchin 3 vs Donnegal
Sea Urchin 3 (Dulux) and Donnegal (PPG) come from different manufacturers. Sea Urchin 3 reads as blue, while Donnegal reads as blue-green — two distinct hue families, not close cousins. Their light reflectance values are nearly the same — 40 vs 38 — so neither will read significantly brighter or darker than the other. ΔE 5.6 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
Sea Urchin 3 vs Donnegal Simulated Comparison
5 simulated room previews — drag the slider on each to see Sea Urchin 3 on one side and Donnegal 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 3 comparisons
See how Sea Urchin 3 stacks up against other well-photographed colors across different brands and tones.







































