Stone grey vs Acier
Stone grey (RAL Classic) and Acier (Sherwin-Williams) come from different manufacturers. Both sit in the grey family, which is useful context if you're narrowing within a single hue direction. The 3-point LRV gap — 32 for Acier vs 29 for Stone grey — means Acier will open up a space more effectively. ΔE 4.4 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.
Stone grey vs Acier in Real Spaces
2 real rooms side by side. Stone grey and Acier 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.
Kitchen Cabinets
Cabinet color is always seen in context — against countertops, backsplash, and hardware — which amplifies undertone differences that might disappear on a plain wall. At this scale, the choice between them becomes clear in a way that a swatch alone can't communicate.
Color Details
Stone grey vs Acier Simulated Comparison
5 simulated room previews — drag the slider on each to see Stone grey on one side and Acier 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 Stone grey comparisons
See how Stone grey stacks up against other well-photographed colors across different brands and tones.
