Under the Sea vs Grey Blue
Under the Sea (Benjamin Moore) and Grey Blue (RAL Classic) come from different manufacturers. Under the Sea reads as green-grey, while Grey Blue reads as blue-grey — two distinct hue families, not close cousins. The 3-point LRV gap — 11 for Under the Sea vs 7 for Grey Blue — means Under the Sea will open up a space more effectively. A ΔE of 16.6 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
Under the Sea vs Grey Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Under the Sea 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 Under the Sea comparisons
See how Under the Sea stacks up against other well-photographed colors across different brands and tones.
