Juan del Castillo occupies the comfortable middle of the value scale, avoiding both extremes to hold the eye in a sustained middle grey. Temperature reads distinctly warm: the reds and earth tones from Juan del Castillo carry the compositional weight. Muted throughout, the palette achieves its effects through value and temperature rather than chromatic force. The saturated accent, #362114, registers at 5.0% - sparse enough to feel like a deliberate surprise. From deepest dark to palest light, the palette traverses 61 units of the value scale - a span that creates natural depth. The palette is a signature: Juan del Castillo's particular sense of value, warmth, and colour weight made legible.