The value structure of Mary Cassatt is mid-key: quiet, controlled, and cohesive. Mary Cassatt orchestrates warmth above all else - reds, ambers, and siennas take the lead. All colours lean toward grey, building depth through value rather than colour punch. The saturated accent, #AA492E, registers at 5.5% - sparse enough to feel like a deliberate surprise. A value spread of 63 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. Mary Cassatt arrived at this balance through long practice; the palette carries the weight of that experience.