Edward William Cooke is high in key: pale, luminous, and filled with optical air. Temperature is cool-dominant, with blue and green families claiming the largest areas. Muted throughout, the palette achieves its effects through value and temperature rather than chromatic force. Only 4.0% is devoted to #42270C, yet that small allocation delivers the palette's entire chromatic tension. From deepest dark to palest light, the palette traverses 69 units of the value scale - a span that creates natural depth. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. Palette 1 sits within the larger chromatic argument that Edward William Cooke's complete body of work advances.