RAL 820-1 vs Piazza
Where RAL 820-1 belongs to RAL Effect's range, Piazza is a Tikkurila color. Hue-wise, RAL 820-1 belongs to the blue-grey family and Piazza to the beige-greige family. Piazza (LRV 65) reflects noticeably more light than RAL 820-1 (LRV 57), a difference of 8 points that becomes especially apparent in rooms with limited natural light. The ΔE 8.4 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
RAL 820-1 vs Piazza in Real Spaces
2 real rooms side by side. RAL 820-1 and Piazza 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
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. The brightness difference is modest but present — Piazza gives the walls a little more lift.
Color Details
RAL 820-1 vs Piazza Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 820-1 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 820-1 comparisons
See how RAL 820-1 stacks up against other well-photographed colors across different brands and tones.
