Mid-key values give Samuel Morse its characteristic quietness - nothing blazes, nothing disappears. Heat pervades this palette; warm chromatic identities outweigh cool ones at almost every weight. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. At 36.5%, #21151B functions less as a colour accent and more as a complete atmospheric environment. Only 2.3% is devoted to #BC8B61, yet that small allocation delivers the palette's entire chromatic tension. The full value range is 63 units: broad enough to build convincing three-dimensional form. This is palette 3 of Samuel Morse's sequence - a single chapter in a chromatic story told across many works.