Charles Robinson occupies the comfortable middle of the value scale, avoiding both extremes to hold the eye in a sustained middle grey. Charles Robinson keeps warm and cool in parity, a balance that lends the work a perceptual shimmer. The absence of saturated colour is itself an expressive choice: this is a palette of restraint and atmosphere. The most saturated colour, #3B582A, is reserved to 5.9% of the surface, where it acts as a focal punctuation. Spanning 53 units on the value axis, the palette achieves the balance between tonal flatness and fragmentation. The palette is recognisably Charles Robinson's own: particular in its temperature, chroma, and the economy of its brightest note.