Mouse grey vs Rocky River
Mouse grey is a RAL Classic color while Rocky River comes from Sherwin-Williams. Mouse grey reads as grey, while Rocky River reads as blue-green — two distinct hue families, not close cousins. At LRV 18 vs 15, Mouse grey will read as the brighter of the two — a 3-point gap that matters most in north-facing or low-light rooms. At ΔE 6.3, 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.
Mouse grey vs Rocky River in Real Spaces
3 real rooms side by side. Mouse grey and Rocky River 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
Mouse grey vs Rocky River Simulated Comparison
5 simulated room previews — drag the slider on each to see Mouse grey on one side and Rocky River 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 Mouse grey comparisons
See how Mouse grey stacks up against other well-photographed colors across different brands and tones.
