Imperial Gray vs Mouse grey
Imperial Gray is a Behr 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 14, Mouse grey will read as the brighter of the two — a 4-point gap that matters most in north-facing or low-light rooms. With a ΔE of 2.3, the difference is subtle — you'd need them side by side to reliably tell them apart. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Imperial Gray vs Mouse grey in Real Spaces
2 real rooms side by side. Imperial Gray 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.
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
Imperial Gray vs Mouse grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Imperial Gray 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 Imperial Gray comparisons
See how Imperial Gray stacks up against other well-photographed colors across different brands and tones.
