Louis Hayet distributes its values across the middle register, creating harmony without high contrast. Temperature is cool-dominant, with blue and green families claiming the largest areas. All colours lean toward grey, building depth through value rather than colour punch. Only 1.4% is devoted to #1D34C3, yet that small allocation delivers the palette's entire chromatic tension. Spanning 42 units on the value axis, the palette achieves the balance between tonal flatness and fragmentation. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. The palette is recognisably Louis Hayet's own: particular in its temperature, chroma, and the economy of its brightest note.