Keisai Eisen is high in key: pale, luminous, and filled with optical air. Keisai Eisen tilts toward cool - blues and silver-greys carry the structural weight. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. At 28.6%, #EAD9BE functions less as a colour accent and more as a complete atmospheric environment. #C5A970 delivers the chromatic peak at only 3.5% - a small shot of colour with outsized visual impact. At 75 units of value range, the palette has the tonal breadth to sustain complex spatial readings. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. Keisai Eisen's palette 1 carries its own internal logic while remaining in conversation with the artist's broader colour intelligence.