Rhine River vs Black grey
Where Rhine River belongs to Benjamin Moore's range, Black grey is a RAL Classic color. Both sit in the blue-grey family, which is useful context if you're narrowing within a single hue direction. Rhine River (LRV 47) reflects noticeably more light than Black grey (LRV 6), a difference of 41 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 54.1, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Rhine River vs Black grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Rhine River 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 Rhine River comparisons
See how Rhine River stacks up against other well-photographed colors across different brands and tones.
