Castle Peak Gray vs Quartz grey
Castle Peak Gray (Benjamin Moore) and Quartz grey (RAL Classic) come from different manufacturers. Castle Peak Gray reads as greige-grey, while Quartz grey reads as grey — two distinct hue families, not close cousins. Their light reflectance values are nearly the same — 15 vs 17 — so neither will read significantly brighter or darker than the other. ΔE 4.9 means they're clearly different, but not dramatically so — they'd pair well in the same room. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Castle Peak Gray vs Quartz grey in Real Spaces
1 real room side by side. Castle Peak Gray and Quartz grey 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
Cabinet color is always seen in context — against countertops, backsplash, and hardware — which amplifies undertone differences that might disappear on a plain wall. At this scale, the choice between them becomes clear in a way that a swatch alone can't communicate.
Color Details
Castle Peak Gray vs Quartz grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Castle Peak Gray on one side and Quartz 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 Castle Peak Gray comparisons
See how Castle Peak Gray stacks up against other well-photographed colors across different brands and tones.
