Narrow Lane vs Functional Gray
Where Narrow Lane belongs to Dulux's range, Functional Gray is a Sherwin-Williams color. Both sit in the greige-grey family, which is useful context if you're narrowing within a single hue direction. Narrow Lane (LRV 41) reflects noticeably more light than Functional Gray (LRV 37), a difference of 4 points that becomes especially apparent in rooms with limited natural light. Both lean warm, so they'll behave similarly in mixed or changing light conditions. At ΔE 2.6, these are close — the kind of difference that matters when choosing between them, but doesn't read strongly in a finished room. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Narrow Lane vs Functional Gray in Real Spaces
1 real room side by side. Narrow Lane and Functional 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.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Narrow Lane reads slightly lighter here — a subtle but real difference in how open the space feels.
Color Details
Narrow Lane vs Functional Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see Narrow Lane on one side and Functional 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 Narrow Lane comparisons
See how Narrow Lane stacks up against other well-photographed colors across different brands and tones.
