Values in Mario Sironi rest in the mid-range - neither dramatically lit nor steeped in shadow. Mario Sironi builds on cool foundations: the palette favours the blue-cyan-green arc. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. #1C2D25 claims 25.5% of the surface, functioning as the work's tonal foundation. #AD8850 delivers the chromatic peak at only 2.0% - a small shot of colour with outsized visual impact. A value spread of 71 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. This is palette 1 of Mario Sironi's sequence - a single chapter in a chromatic story told across many works.