Mid-key values give Samuel Morse its characteristic quietness - nothing blazes, nothing disappears. Yellow, ochre, sienna: warm hues that Samuel Morse deploys as the palette's primary energy. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. The saturated accent, #A04329, registers at 2.4% - sparse enough to feel like a deliberate surprise. A value spread of 56 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. This is palette 4 of Samuel Morse's sequence - a single chapter in a chromatic story told across many works.