Sea Urchin 1 vs RAL 720-6
Where Sea Urchin 1 belongs to Dulux's range, RAL 720-6 is a RAL Effect color. These are both blues, so the question isn't which hue to choose — it's where within blue to land. Sea Urchin 1 (LRV 19) reflects noticeably more light than RAL 720-6 (LRV 12), a difference of 7 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 11.7, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. 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 1 vs RAL 720-6 Simulated Comparison
5 simulated room previews — drag the slider on each to see Sea Urchin 1 on one side and RAL 720-6 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 1 comparisons
See how Sea Urchin 1 stacks up against other well-photographed colors across different brands and tones.
