Black grey vs Smooth Stone
Black grey (RAL Classic) and Smooth Stone (Sherwin-Williams) come from different manufacturers. Black grey reads as blue-grey, while Smooth Stone reads as greige-grey — two distinct hue families, not close cousins. The 30-point LRV gap — 37 for Smooth Stone vs 6 for Black grey — means Smooth Stone will open up a space more effectively. A ΔE of 46.9 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
Black grey vs Smooth Stone Simulated Comparison
5 simulated room previews — drag the slider on each to see Black grey on one side and Smooth Stone 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.
