Rock Gray vs Smoke Gray
Both are Benjamin Moore colors. Rock Gray reads as grey, while Smoke Gray reads as blue-grey — two distinct hue families, not close cousins. At LRV 24 vs 21, Rock Gray will read as the brighter of the two — a 3-point gap that matters most in north-facing or low-light rooms. They share a blue quality — useful to know if you're layering them in the same space. At ΔE 4.0, 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.
Rock Gray vs Smoke Gray in Real Spaces
2 real rooms side by side. Rock Gray and Smoke Gray 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.
Bathroom
Bathrooms amplify color — the enclosed space and reflective surfaces make what reads subtle elsewhere feel more present here. 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.
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
Rock Gray vs Smoke Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see Rock Gray on one side and Smoke Gray 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 Rock Gray comparisons
See how Rock Gray stacks up against other well-photographed colors across different brands and tones.
