Sage Mountain vs RAL 850-4
Sage Mountain (Benjamin Moore) and RAL 850-4 (RAL Effect) come from different manufacturers. Sage Mountain reads as greige-grey, while RAL 850-4 reads as grey — two distinct hue families, not close cousins. Their light reflectance values are nearly the same — 29 vs 27 — so neither will read significantly brighter or darker than the other. ΔE 5.7 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.
Sage Mountain vs RAL 850-4 in Real Spaces
1 real room side by side. Sage Mountain and RAL 850-4 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.
Bathroom
Small bathrooms intensify color. A shade that seems quiet in a larger room can feel immersive when you're surrounded by it on four walls. At this scale, the choice between them becomes clear in a way that a swatch alone can't communicate.
Color Details
Sage Mountain vs RAL 850-4 Simulated Comparison
5 simulated room previews — drag the slider on each to see Sage Mountain on one side and RAL 850-4 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 Sage Mountain comparisons
See how Sage Mountain stacks up against other well-photographed colors across different brands and tones.










































