Quartz grey vs Functional Gray
Quartz grey is a RAL Classic color while Functional Gray comes from Sherwin-Williams. Hue-wise, Quartz grey belongs to the grey family and Functional Gray to the greige-grey family. At LRV 37 vs 17, Functional Gray will read as the brighter of the two — a 20-point gap that matters most in north-facing or low-light rooms. At ΔE 24.0, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Quartz grey vs Functional Gray in Real Spaces
2 real rooms side by side. Seeing Quartz grey and Functional Gray in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
House
At full exterior scale, the difference between these two colors becomes much easier to judge than from a small chip. The LRV gap is large enough that Functional Gray will make the room feel meaningfully brighter than Quartz grey would.
Kitchen Cabinets
On cabinetry, undertone and temperature become more pronounced against countertops and hardware. The LRV gap is large enough that Functional Gray will make the room feel meaningfully brighter than Quartz grey would.
Color Details
Quartz grey vs Functional Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see Quartz grey 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 Quartz grey comparisons
See how Quartz grey stacks up against other well-photographed colors across different brands and tones.
