Francisco Herrera is strongly light-biased - shadow is suggested rather than declared. Blues and teal-greys govern the palette, lending it an aquatic or atmospheric quality. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. At 70.6%, #FFFFFF functions less as a colour accent and more as a complete atmospheric environment. At 2.8%, #C19D5D carries the palette's sharpest chromatic charge: an accent that earns its place precisely because it is withheld. A value spread of 66 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. Palette 1 sits within the larger chromatic argument that Francisco Herrera's complete body of work advances.