Otto Eckmann is high in key: pale, luminous, and filled with optical air. Temperature is cool-dominant, with blue and green families claiming the largest areas. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. Only 8.2% is devoted to #E0CA9C, yet that small allocation delivers the palette's entire chromatic tension. At 64 units of value range, the palette has the tonal breadth to sustain complex spatial readings. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. This is palette 1 of Otto Eckmann's sequence - a single chapter in a chromatic story told across many works.