Plymouth Rock vs Grey Blue
Plymouth Rock (Benjamin Moore) and Grey Blue (RAL Classic) come from different manufacturers. Plymouth Rock reads as greige-grey, while Grey Blue reads as blue-grey — two distinct hue families, not close cousins. The 35-point LRV gap — 43 for Plymouth Rock vs 7 for Grey Blue — means Plymouth Rock will open up a space more effectively. A ΔE of 41.9 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
Plymouth Rock vs Grey Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Plymouth Rock 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 Plymouth Rock comparisons
See how Plymouth Rock stacks up against other well-photographed colors across different brands and tones.








































