Antonio del Pollaiolo sits in the centre of the value range, lending the palette a sense of even, sustained light. Temperature is cool-dominant, with blue and green families claiming the largest areas. All colours lean toward grey, building depth through value rather than colour punch. The most saturated colour, #643923, is reserved to 4.8% of the surface, where it acts as a focal punctuation. 64 units of value range underpin the palette's structural clarity: the eye always knows where light falls. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. This is palette 4 of Antonio del Pollaiolo's sequence - a single chapter in a chromatic story told across many works.