Petrus Christus occupies the comfortable middle of the value scale, avoiding both extremes to hold the eye in a sustained middle grey. Temperature reads distinctly warm: the reds and earth tones from Petrus Christus carry the compositional weight. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. Petrus Christus gives 26.8% of the composition to a single #1F1919 - a decisive chromatic anchor. Only 1.9% is devoted to #756335, yet that small allocation delivers the palette's entire chromatic tension. A value spread of 63 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. In the context of Petrus Christus's full range of palettes, group 7 represents one movement in an ongoing chromatic dialogue.