RAL 820-M vs Piazza
RAL 820-M is a RAL Effect color while Piazza comes from Tikkurila. RAL 820-M reads as grey, while Piazza reads as beige-greige — two distinct hue families, not close cousins. At LRV 65 vs 29, Piazza will read as the brighter of the two — a 36-point gap that matters most in north-facing or low-light rooms. At ΔE 25.0, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
RAL 820-M vs Piazza in Real Spaces
3 real rooms side by side. Seeing RAL 820-M 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
Living rooms test a color across a full range of conditions — morning sun, afternoon shade, and evening lamp light all shift how both of these read. Piazza returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Bedroom
Bedroom walls are often seen under warm artificial light, a context that shifts both colors from how they look on a chip. The LRV gap is large enough that Piazza will make the room feel meaningfully brighter than RAL 820-M would.
Color Details
RAL 820-M vs Piazza Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 820-M 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 820-M comparisons
See how RAL 820-M stacks up against other well-photographed colors across different brands and tones.
