Moth Gray vs RAL 840-2
Moth Gray (Behr) and RAL 840-2 (RAL Effect) come from different manufacturers. Hue-wise, Moth Gray belongs to the beige-greige family and RAL 840-2 to the greige-grey family. Their light reflectance values are nearly the same — 66 vs 66 — so neither will read significantly brighter or darker than the other. A ΔE of 1.9 puts them in subtle territory — distinguishable in direct comparison, less so from across a room. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Moth Gray vs RAL 840-2 in Real Spaces
1 real room side by side. Moth Gray and RAL 840-2 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.
Living Room
A living room wall sees more varied light than almost any other surface in the house, which makes the choice between these two more nuanced than a chip suggests. At this scale the difference is subtle — you'd need them side by side, as shown here, to reliably tell them apart.
Color Details
Moth Gray vs RAL 840-2 Simulated Comparison
5 simulated room previews — drag the slider on each to see Moth Gray on one side and RAL 840-2 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 Moth Gray comparisons
See how Moth Gray stacks up against other well-photographed colors across different brands and tones.
