Mary Cassatt sits in the centre of the value range, lending the palette a sense of even, sustained light. The palette achieves thermal balance - reds and blues, ochres and greens, each holding the other in check. Muted throughout, the palette achieves its effects through value and temperature rather than chromatic force. The saturated accent, #AC5D4B, registers at 4.2% - sparse enough to feel like a deliberate surprise. A value spread of 61 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. Palette 15 sits within the larger chromatic argument that Mary Cassatt's complete body of work advances.