Opal Silk vs Sea Urchin 3
Opal Silk (Behr) and Sea Urchin 3 (Dulux) come from different manufacturers. Hue-wise, Opal Silk belongs to the blue-green family and Sea Urchin 3 to the blue family. The 3-point LRV gap — 43 for Opal Silk vs 40 for Sea Urchin 3 — means Opal Silk will open up a space more effectively. Where Opal Silk leans green, Sea Urchin 3 reads cool — a distinction that shifts noticeably depending on the light source and surrounding finishes. ΔE 5.8 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
Opal Silk vs Sea Urchin 3 Simulated Comparison
5 simulated room previews — drag the slider on each to see Opal Silk on one side and Sea Urchin 3 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 Opal Silk comparisons
See how Opal Silk stacks up against other well-photographed colors across different brands and tones.








































