RAL 840-3 vs Piazza
RAL 840-3 (RAL Effect) and Piazza (Tikkurila) come from different manufacturers. Hue-wise, RAL 840-3 belongs to the greige-grey family and Piazza to the beige-greige family. The 19-point LRV gap — 65 for Piazza vs 46 for RAL 840-3 — means Piazza will open up a space more effectively. A ΔE of 11.3 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
RAL 840-3 vs Piazza in Real Spaces
2 real rooms side by side. Seeing RAL 840-3 and Piazza in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
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. Piazza reflects noticeably more light off the walls, making the space read more open than RAL 840-3.
Kitchen
Kitchens often have the harshest, most revealing light in the house — under-cabinet LEDs and overhead fixtures that strip away subtlety. Piazza returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
RAL 840-3 vs Piazza Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 840-3 on one side and Piazza 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 840-3 comparisons
See how RAL 840-3 stacks up against other well-photographed colors across different brands and tones.
