Mouse grey vs Grizzle Gray
Where Mouse grey belongs to RAL Classic's range, Grizzle Gray is a Sherwin-Williams color. Both sit in the grey family, which is useful context if you're narrowing within a single hue direction. Mouse grey (LRV 18) reflects noticeably more light than Grizzle Gray (LRV 13), a difference of 5 points that becomes especially apparent in rooms with limited natural light. The ΔE 3.6 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Mouse grey vs Grizzle Gray in Real Spaces
3 real rooms side by side. Mouse grey and Grizzle Gray 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
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. The brightness difference is modest but present — Mouse grey gives the walls a little more lift.
Kitchen
In a kitchen, colors are seen under bright task lighting that amplifies undertones — what reads neutral elsewhere can show its hand here. Mouse grey reads slightly lighter here — a subtle but real difference in how open the space feels.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Mouse grey reads slightly lighter here — a subtle but real difference in how open the space feels.
Color Details
Mouse grey vs Grizzle Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see Mouse grey on one side and Grizzle Gray 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.
At LRV 83 vs 18, White Dove is decisively the brighter choice.
Ammonite reflects far more light (LRV 69 vs 18), opening up a space where Mouse grey encloses it.
At LRV 18 vs 6, Mouse grey is decisively the brighter choice.
Purbeck Stone reflects far more light (LRV 52 vs 18), opening up a space where Mouse grey encloses it.
Evergreen Fog reflects far more light (LRV 30 vs 18), opening up a space where Mouse grey encloses it.
At LRV 52 vs 18, Mizzle is decisively the brighter choice.
Agreeable Gray reflects far more light (LRV 60 vs 18), opening up a space where Mouse grey encloses it.
At LRV 58 vs 18, Accessible Beige is decisively the brighter choice.
A 9-point LRV gap (27 vs 18) makes Denim Drift the marginally brighter of the two.
French Gray reflects far more light (LRV 43 vs 18), opening up a space where Mouse grey encloses it.
Mouse grey reflects far more light (LRV 18 vs 4), opening up a space where Naval encloses it.
At LRV 55 vs 18, Tranquil Dawn is decisively the brighter choice.
A 5-point LRV gap (18 vs 13) makes Mouse grey the marginally brighter of the two.
At LRV 44 vs 18, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 18), opening up a space where Mouse grey encloses it.
Artichoke reads slightly lighter (LRV 21 vs 18), a gap that shows most in low-lit rooms.
At LRV 66 vs 18, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 18, Shoji White is decisively the brighter choice.
At LRV 83 vs 18, Snowbound is decisively the brighter choice.
A 6-point LRV gap (18 vs 12) makes Mouse grey the marginally brighter of the two.
At LRV 68 vs 18, Skimming Stone is decisively the brighter choice.
Dix Blue reflects far more light (LRV 41 vs 18), opening up a space where Mouse grey encloses it.
Calamine reflects far more light (LRV 68 vs 18), opening up a space where Mouse grey encloses it.
Treron reads slightly lighter (LRV 25 vs 18), a gap that shows most in low-lit rooms.
A 6-point LRV gap (18 vs 12) makes Mouse grey the marginally brighter of the two.
At LRV 45 vs 18, Saybrook Sage is decisively the brighter choice.
Pale Green reflects far more light (LRV 31 vs 18), opening up a space where Mouse grey encloses it.
Mouse grey reads slightly lighter (LRV 18 vs 7), a gap that shows most in low-lit rooms.
Cement grey reads slightly lighter (LRV 24 vs 18), a gap that shows most in low-lit rooms.
Guilford Green reflects far more light (LRV 57 vs 18), opening up a space where Mouse grey encloses it.