Seaport Blue vs Cement grey
Seaport Blue (Benjamin Moore) and Cement grey (RAL Classic) come from different manufacturers. Seaport Blue reads as blue, while Cement grey reads as grey — two distinct hue families, not close cousins. The 8-point LRV gap — 24 for Cement grey vs 16 for Seaport Blue — means Cement grey will open up a space more effectively. A ΔE of 43.3 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
Seaport Blue vs Cement grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Seaport Blue on one side and Cement 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 Seaport Blue comparisons
See how Seaport Blue stacks up against other well-photographed colors across different brands and tones.
