Sea Urchin 1 vs Pure White
Where Sea Urchin 1 belongs to Dulux's range, Pure White is a Sherwin-Williams color. Sea Urchin 1 reads as blue, while Pure White reads as beige-greige — two distinct hue families, not close cousins. Pure White (LRV 84) reflects noticeably more light than Sea Urchin 1 (LRV 19), a difference of 65 points that becomes especially apparent in rooms with limited natural light. Sea Urchin 1 runs cool while Pure White is decidedly warm, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 48.2, 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 Pure White Simulated Comparison
5 simulated room previews — drag the slider on each to see Sea Urchin 1 on one side and Pure White 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.
