River Rock vs Cement grey
River Rock (Benjamin Moore) and Cement grey (RAL Classic) come from different manufacturers. River Rock reads as beige-greige, while Cement grey reads as grey — two distinct hue families, not close cousins. The 18-point LRV gap — 24 for Cement grey vs 7 for River Rock — means Cement grey will open up a space more effectively. A ΔE of 26.1 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
River Rock vs Cement grey Simulated Comparison
5 simulated room previews — drag the slider on each to see River Rock 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 River Rock comparisons
See how River Rock stacks up against other well-photographed colors across different brands and tones.
