Black grey vs RAL 870-6
Black grey is a RAL Classic color while RAL 870-6 comes from RAL Effect. Hue-wise, Black grey belongs to the blue-grey family and RAL 870-6 to the grey family. With LRVs of 6 and 5, they'll behave almost identically in terms of how much light they reflect back into a room. At ΔE 5.3, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Black grey vs RAL 870-6 in Real Spaces
2 real rooms side by side. Black grey and RAL 870-6 are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
Living Room
Living rooms test a color across a full range of conditions — morning sun, afternoon shade, and evening lamp light all shift how both of these read. At this scale, the choice between them becomes clear in a way that a swatch alone can't communicate.
Kitchen Cabinets
On cabinetry, undertone and temperature become more pronounced against countertops and hardware. Side by side like this, the difference is easy to read — which is exactly why seeing them in a real space is more useful than comparing chips.
Color Details
Black grey vs RAL 870-6 Simulated Comparison
5 simulated room previews — drag the slider on each to see Black grey on one side and RAL 870-6 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 Black grey comparisons
See how Black grey stacks up against other well-photographed colors across different brands and tones.
