Seaside Blue vs Black grey
Seaside Blue (Benjamin Moore) and Black grey (RAL Classic) come from different manufacturers. Hue-wise, Seaside Blue belongs to the blue family and Black grey to the blue-grey family. The 41-point LRV gap — 47 for Seaside Blue vs 6 for Black grey — means Seaside Blue will open up a space more effectively. A ΔE of 57.1 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
Seaside Blue vs Black grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Seaside Blue on one side and Black grey 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 Seaside Blue comparisons
See how Seaside Blue stacks up against other well-photographed colors across different brands and tones.
