Sea Urchin 2 vs Grey Blue
Where Sea Urchin 2 belongs to Dulux's range, Grey Blue is a RAL Classic color. Both sit in the blue-grey family, which is useful context if you're narrowing within a single hue direction. Sea Urchin 2 (LRV 28) reflects noticeably more light than Grey Blue (LRV 7), a difference of 21 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 29.4, 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 2 vs Grey Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Sea Urchin 2 on one side and Grey Blue 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 2 comparisons
See how Sea Urchin 2 stacks up against other well-photographed colors across different brands and tones.
