Stone Green vs RAL 840-3
Stone Green is a Dulux color while RAL 840-3 comes from RAL Effect. Stone Green reads as green-greige, while RAL 840-3 reads as greige-grey — two distinct hue families, not close cousins. With LRVs of 46 and 46, they'll behave almost identically in terms of how much light they reflect back into a room. With a ΔE of 1.0, the difference is subtle — you'd need them side by side to reliably tell them apart. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Stone Green vs RAL 840-3 in Real Spaces
3 real rooms side by side. Stone Green and RAL 840-3 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
Kitchen lighting tends to be bright and directional, which sharpens contrast and makes undertone differences more apparent. The two are close enough that the choice comes down to finer qualities — undertone, texture, what the color sits next to.
Bathroom
Bathrooms amplify color — the enclosed space and reflective surfaces make what reads subtle elsewhere feel more present here. The two are close enough that the choice comes down to finer qualities — undertone, texture, what the color sits next to.
Kitchen Cabinets
On cabinetry, undertone and temperature become more pronounced against countertops and hardware. The two are close enough that the choice comes down to finer qualities — undertone, texture, what the color sits next to.
Color Details
Stone Green vs RAL 840-3 Simulated Comparison
5 simulated room previews — drag the slider on each to see Stone Green on one side and RAL 840-3 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 Stone Green comparisons
See how Stone Green stacks up against other well-photographed colors across different brands and tones.
