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.
Ammonite reflects far more light (LRV 69 vs 14), opening up a space where Imperial Gray encloses it.
At LRV 83 vs 14, White Dove is decisively the brighter choice.
A 9-point LRV gap (14 vs 6) makes Imperial Gray the marginally brighter of the two.
Purbeck Stone reflects far more light (LRV 52 vs 14), opening up a space where Imperial Gray encloses it.
Evergreen Fog reflects far more light (LRV 30 vs 14), opening up a space where Imperial Gray encloses it.
At LRV 52 vs 14, Mizzle is decisively the brighter choice.
Agreeable Gray reflects far more light (LRV 60 vs 14), opening up a space where Imperial Gray encloses it.
At LRV 58 vs 14, Accessible Beige is decisively the brighter choice.
At LRV 27 vs 14, Denim Drift is decisively the brighter choice.
French Gray reflects far more light (LRV 43 vs 14), opening up a space where Imperial Gray encloses it.
Imperial Gray reads slightly lighter (LRV 14 vs 4), a gap that shows most in low-lit rooms.
At LRV 55 vs 14, Tranquil Dawn is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 14 vs 13), so neither reads brighter in a room.
At LRV 44 vs 14, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 14), opening up a space where Imperial Gray encloses it.
Artichoke reads slightly lighter (LRV 21 vs 14), a gap that shows most in low-lit rooms.
At LRV 66 vs 14, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 14, Shoji White is decisively the brighter choice.
At LRV 83 vs 14, Snowbound is decisively the brighter choice.
Pigeon reflects far more light (LRV 51 vs 14), opening up a space where Imperial Gray encloses it.
Their light reflectance is nearly identical (LRV 14 vs 12), so neither reads brighter in a room.
A 6-point LRV gap (14 vs 8) makes Imperial Gray the marginally brighter of the two.
At LRV 68 vs 14, Skimming Stone is decisively the brighter choice.
Dix Blue reflects far more light (LRV 41 vs 14), opening up a space where Imperial Gray encloses it.
Their light reflectance is nearly identical (LRV 14 vs 12), so neither reads brighter in a room.
At LRV 45 vs 14, Saybrook Sage is decisively the brighter choice.
Pale Green reflects far more light (LRV 31 vs 14), opening up a space where Imperial Gray encloses it.