The value structure of Harada Naojiro is mid-key: quiet, controlled, and cohesive. Cool tones set the register here - the blues and greens easily outweigh any warm accents. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. At 6.5%, #A6885A carries the palette's sharpest chromatic charge: an accent that earns its place precisely because it is withheld. Value range is moderate at 49 units - enough contrast for legibility, not so much as to fragment the tonal unity. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source. The palette is recognisably Harada Naojiro's own: particular in its temperature, chroma, and the economy of its brightest note.