Black Walnut vs Umbra grey
Black Walnut (PPG) and Umbra grey (RAL Classic) come from different manufacturers. Both sit in the grey family, which is useful context if you're narrowing within a single hue direction. The 4-point LRV gap — 10 for Umbra grey vs 6 for Black Walnut — means Umbra grey will open up a space more effectively. ΔE 6.6 means they're clearly different, but not dramatically so — they'd pair well in the same room. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Black Walnut vs Umbra grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Black Walnut on one side and Umbra 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 Black Walnut comparisons
See how Black Walnut stacks up against other well-photographed colors across different brands and tones.







































