St. Lucia Teal vs Sea Urchin 3
Where St. Lucia Teal belongs to Benjamin Moore's range, Sea Urchin 3 is a Dulux color. Hue-wise, St. Lucia Teal belongs to the blue-green family and Sea Urchin 3 to the blue family. St. Lucia Teal (LRV 44) reflects noticeably more light than Sea Urchin 3 (LRV 40), a difference of 4 points that becomes especially apparent in rooms with limited natural light. St. Lucia Teal runs green while Sea Urchin 3 is decidedly cool, which means they'll respond very differently to warm vs cool light sources. The ΔE 5.8 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
St. Lucia Teal vs Sea Urchin 3 in Real Spaces
1 real room side by side. St. Lucia Teal and Sea Urchin 3 are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
Living Room
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. The brightness difference is modest but present — St. Lucia Teal gives the walls a little more lift.
Color Details
St. Lucia Teal vs Sea Urchin 3 Simulated Comparison
5 simulated room previews — drag the slider on each to see St. Lucia Teal 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 St. Lucia Teal comparisons
See how St. Lucia Teal stacks up against other well-photographed colors across different brands and tones.
