Low-key values are the structural spine of Sofonisba Anguissola, giving it gravity and atmosphere. Yellow, ochre, sienna: warm hues that Sofonisba Anguissola deploys as the palette's primary energy. Muted throughout, the palette achieves its effects through value and temperature rather than chromatic force. #110D0F at 34.0% of the palette: an overwhelming presence that pulls all other colours into its gravitational field. #D9C0A3 functions as the palette's exclamation mark: highest chroma, lowest percentage (2.7%). The value range spans 65 units across the palette, providing the full gamut from deep shadow to near-white and ensuring clear tonal hierarchy. The combination of low values, muted chroma, and compressed range is the signature of the Tonalist mode - painting as atmosphere. Palette 5 sits within the larger chromatic argument that Sofonisba Anguissola's complete body of work advances.