Sea Urchin vs Grey Blue
Sea Urchin (Benjamin Moore) and Grey Blue (RAL Classic) come from different manufacturers. Sea Urchin reads as beige, while Grey Blue reads as blue-grey — two distinct hue families, not close cousins. The 55-point LRV gap — 62 for Sea Urchin vs 7 for Grey Blue — means Sea Urchin will open up a space more effectively. A ΔE of 56.3 puts these firmly in different territory — two distinct design choices rather than close alternatives. 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 vs Grey Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Sea Urchin 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 comparisons
See how Sea Urchin stacks up against other well-photographed colors across different brands and tones.
