Juan del Castillo distributes its values across the middle register, creating harmony without high contrast. Heat pervades this palette; warm chromatic identities outweigh cool ones at almost every weight. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. At 10.1%, #855632 carries the palette's sharpest chromatic charge: an accent that earns its place precisely because it is withheld. A value spread of 65 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. In the context of Juan del Castillo's full range of palettes, group 1 represents one movement in an ongoing chromatic dialogue.