Mid-key values give Luca Signorelli its characteristic quietness - nothing blazes, nothing disappears. Yellow, ochre, sienna: warm hues that Luca Signorelli deploys as the palette's primary energy. Muted throughout, the palette achieves its effects through value and temperature rather than chromatic force. #885825 functions as the palette's exclamation mark: highest chroma, lowest percentage (10.1%). A value spread of 72 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. Palette 9 sits within the larger chromatic argument that Luca Signorelli's complete body of work advances.