Values in Francesco del Cossa rest in the mid-range - neither dramatically lit nor steeped in shadow. The dominant temperature is warm, with earth tones and fire-hues setting the emotional key. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. The saturated accent, #BF915A, registers at 8.9% - sparse enough to feel like a deliberate surprise. The value range of 53 units sits in the comfortable middle: enough depth, enough light, neither extreme. These proportions encode Francesco del Cossa's instinctive sense of how much of each quality the eye can hold.