Values in John Singer Sargent rest in the mid-range - neither dramatically lit nor steeped in shadow. Yellow, ochre, sienna: warm hues that John Singer Sargent deploys as the palette's primary energy. Chroma is moderate: colours carry enough saturation to be read as colour, but the palette stops well short of garish intensity. The highest-chroma note - #E1C698 - appears at just 9.9%, deployed as a precision accent against the quieter ground. A value spread of 62 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. John Singer Sargent's palette 21 carries its own internal logic while remaining in conversation with the artist's broader colour intelligence.