Window grey vs Piazza
Where Window grey belongs to RAL Classic's range, Piazza is a Tikkurila color. Window grey reads as blue-grey, while Piazza reads as beige-greige — two distinct hue families, not close cousins. Piazza (LRV 65) reflects noticeably more light than Window grey (LRV 36), a difference of 29 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 21.5, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Window grey vs Piazza in Real Spaces
1 real room side by side. Seeing Window grey 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
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 LRV gap is large enough that Piazza will make the room feel meaningfully brighter than Window grey would.
Color Details
Window grey vs Piazza Simulated Comparison
5 simulated room previews — drag the slider on each to see Window grey 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 Window grey comparisons
See how Window grey stacks up against other well-photographed colors across different brands and tones.
