Piero della Francesca keeps values measured and balanced, a hallmark of tonal restraint. Piero della Francesca tilts toward cool - blues and silver-greys carry the structural weight. Chroma is held at a comfortable level - distinct colours, but no single hue is allowed to overwhelm. #BE904B at 28.3% of the palette: an overwhelming presence that pulls all other colours into its gravitational field. At 5.3%, #CB6F5E carries the palette's sharpest chromatic charge: an accent that earns its place precisely because it is withheld. Spanning 47 units on the value axis, the palette achieves the balance between tonal flatness and fragmentation. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. This is palette 10 of Piero della Francesca's sequence - a single chapter in a chromatic story told across many works.