Dark Ash vs Mouse grey
Dark Ash is a Behr color while Mouse grey comes from RAL Classic. These are both greys, so the question isn't which hue to choose — it's where within grey to land. 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. With a ΔE of 1.8, the difference is subtle — you'd need them side by side to reliably tell them apart. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Dark Ash vs Mouse grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Dark Ash 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 Dark Ash comparisons
See how Dark Ash stacks up against other well-photographed colors across different brands and tones.








































