Functional Gray vs Mount Etna
Both from Sherwin-Williams's palette. Functional Gray reads as greige-grey, while Mount Etna reads as blue-grey — two distinct hue families, not close cousins. Functional Gray (LRV 37) reflects noticeably more light than Mount Etna (LRV 6), a difference of 31 points that becomes especially apparent in rooms with limited natural light. Functional Gray runs warm while Mount Etna is decidedly cool, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 39.1, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Functional Gray vs Mount Etna in Real Spaces
2 real rooms side by side. Seeing Functional Gray and Mount Etna in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
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 LRV gap is large enough that Functional Gray will make the room feel meaningfully brighter than Mount Etna would.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Functional Gray reflects noticeably more light off the walls, making the space read more open than Mount Etna.
Color Details
Functional Gray vs Mount Etna Simulated Comparison
5 simulated room previews — drag the slider on each to see Functional Gray on one side and Mount Etna 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 Functional Gray comparisons
See how Functional Gray stacks up against other well-photographed colors across different brands and tones.
