Francesco del Cossa occupies the comfortable middle of the value scale, avoiding both extremes to hold the eye in a sustained middle grey. Cool tones set the register here - the blues and greens easily outweigh any warm accents. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. The highest-chroma note - #653830 - appears at just 5.3%, deployed as a precision accent against the quieter ground. From deepest dark to palest light, the palette traverses 63 units of the value scale - a span that creates natural depth. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. This is palette 5 of Francesco del Cossa's sequence - a single chapter in a chromatic story told across many works.