Sea Urchin 3 vs Catalina
Where Sea Urchin 3 belongs to Dulux's range, Catalina is a PPG color. These are both blues, so the question isn't which hue to choose — it's where within blue to land. Sea Urchin 3 (LRV 40) reflects noticeably more light than Catalina (LRV 32), a difference of 8 points that becomes especially apparent in rooms with limited natural light. The ΔE 7.7 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
Sea Urchin 3 vs Catalina Simulated Comparison
5 simulated room previews — drag the slider on each to see Sea Urchin 3 on one side and Catalina 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.
