Mary Cassatt distributes its values across the middle register, creating harmony without high contrast. Mary Cassatt tilts toward cool - blues and silver-greys carry the structural weight. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. The most saturated colour, #886653, is reserved to 8.6% of the surface, where it acts as a focal punctuation. A value spread of 63 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. Palette 17 sits within the larger chromatic argument that Mary Cassatt's complete body of work advances.