Smooth Stone vs Piazza
Smooth Stone is a Sherwin-Williams color while Piazza comes from Tikkurila. Hue-wise, Smooth Stone belongs to the greige-grey family and Piazza to the beige-greige family. At LRV 65 vs 37, Piazza will read as the brighter of the two — a 28-point gap that matters most in north-facing or low-light rooms. At ΔE 17.8, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Smooth Stone vs Piazza Simulated Comparison
5 simulated room previews — drag the slider on each to see Smooth Stone 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 Smooth Stone comparisons
See how Smooth Stone stacks up against other well-photographed colors across different brands and tones.
