The value structure of Henry Arthur McArdle is mid-key: quiet, controlled, and cohesive. Yellow, ochre, sienna: warm hues that Henry Arthur McArdle deploys as the palette's primary energy. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. The saturated accent, #D9A878, registers at 2.0% - sparse enough to feel like a deliberate surprise. Spanning 50 units on the value axis, the palette achieves the balance between tonal flatness and fragmentation. Palette 3 sits within the larger chromatic argument that Henry Arthur McArdle's complete body of work advances.