Suzanne Duchamp is high in key: pale, luminous, and filled with optical air. Blues and teal-greys govern the palette, lending it an aquatic or atmospheric quality. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. At 12.3%, #D3C584 carries the palette's sharpest chromatic charge: an accent that earns its place precisely because it is withheld. Spanning 53 units on the value axis, the palette achieves the balance between tonal flatness and fragmentation. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. Suzanne Duchamp's palette 3 carries its own internal logic while remaining in conversation with the artist's broader colour intelligence.