The value structure of Rogier van der Weyden is mid-key: quiet, controlled, and cohesive. Warm and cool are kept in productive tension, creating the kind of chromatic harmony that sustains the eye. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. 26.7% of the palette belongs to #141416, a concentration that makes it the unmistakable visual centre. The most saturated colour, #E4D0B4, is reserved to 9.9% of the surface, where it acts as a focal punctuation. 68 units of value range underpin the palette's structural clarity: the eye always knows where light falls. Rogier van der Weyden's palette 4 carries its own internal logic while remaining in conversation with the artist's broader colour intelligence.