The high-key values of Purism give it an effulgent, almost bleached quality. The palette tilts toward cool - blues and silver-greys carry the structural weight. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. Only 6.1% is devoted to #C4B690, yet that small allocation delivers the palette's entire chromatic tension. At 70 units of value range, the palette has the tonal breadth to sustain complex spatial readings. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively.