Grey Blue vs Piazza
Grey Blue is a RAL Classic color while Piazza comes from Tikkurila. Hue-wise, Grey Blue belongs to the blue-grey family and Piazza to the beige-greige family. At LRV 65 vs 7, Piazza will read as the brighter of the two — a 58-point gap that matters most in north-facing or low-light rooms. At ΔE 54.0, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Grey Blue vs Piazza in Real Spaces
1 real room side by side. Seeing Grey Blue 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.
Color Details
Grey Blue vs Piazza Simulated Comparison
5 simulated room previews — drag the slider on each to see Grey Blue 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 Grey Blue comparisons
See how Grey Blue stacks up against other well-photographed colors across different brands and tones.










































