Charcoal Slate vs Mouse grey
Charcoal Slate is a Benjamin Moore color while Mouse grey comes from RAL Classic. Both sit in the grey family, which is useful context if you're narrowing within a single hue direction. At LRV 18 vs 15, Mouse grey will read as the brighter of the two — a 4-point gap that matters most in north-facing or low-light rooms. At ΔE 4.0, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Charcoal Slate vs Mouse grey in Real Spaces
3 real rooms side by side. Charcoal Slate and Mouse 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.
Living Room
Living rooms test a color across a full range of conditions — morning sun, afternoon shade, and evening lamp light all shift how both of these read. Mouse grey has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Kitchen
Kitchen lighting tends to be bright and directional, which sharpens contrast and makes undertone differences more apparent. The brightness difference is modest but present — Mouse grey gives the walls a little more lift.
Kitchen Cabinets
On cabinetry, undertone and temperature become more pronounced against countertops and hardware. The brightness difference is modest but present — Mouse grey gives the walls a little more lift.
Color Details
Charcoal Slate vs Mouse grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Charcoal Slate on one side and Mouse 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 Charcoal Slate comparisons
See how Charcoal Slate stacks up against other well-photographed colors across different brands and tones.
