Galaxy vs Black grey
Galaxy (Benjamin Moore) and Black grey (RAL Classic) come from different manufacturers. Hue-wise, Galaxy belongs to the grey family and Black grey to the blue-grey family. Their light reflectance values are nearly the same — 6 vs 6 — so neither will read significantly brighter or darker than the other. ΔE 7.4 means they're clearly different, but not dramatically so — they'd pair well in the same room. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Galaxy vs Black grey in Real Spaces
2 real rooms side by side. Galaxy and Black grey 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.
House
A full exterior is the most demanding test for a paint color — scale and outdoor light both amplify differences that seem small on a swatch. At this scale, the choice between them becomes clear in a way that a swatch alone can't communicate.
Front Door
On a front door, the color is both the first and last thing you see — a context where even a modest tonal difference reads clearly. The distinction reads clearly at room scale, making the choice between them concrete.
Color Details
Galaxy vs Black grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Galaxy 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 Galaxy comparisons
See how Galaxy stacks up against other well-photographed colors across different brands and tones.
