RAL 840-1 vs Grey Mist
Where RAL 840-1 belongs to RAL Effect's range, Grey Mist is a Sherwin-Williams color. Both sit in the beige-greige family, which is useful context if you're narrowing within a single hue direction. They have nearly identical light reflectance values (77 vs 75), so they'll read as similarly Light in most lighting conditions. At ΔE 0.9, these are close — the kind of difference that matters when choosing between them, but doesn't read strongly in a finished room. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
RAL 840-1 vs Grey Mist Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 840-1 on one side and Grey Mist 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 RAL 840-1 comparisons
See how RAL 840-1 stacks up against other well-photographed colors across different brands and tones.
