Values in Henri Matisse tilt decisively toward white, giving the palette its luminous character. Henri Matisse tilts toward cool - blues and silver-greys carry the structural weight. The absence of saturated colour is itself an expressive choice: this is a palette of restraint and atmosphere. The most saturated colour, #B2A265, is reserved to 3.5% of the surface, where it acts as a focal punctuation. At 62 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. Palette 13 sits within the larger chromatic argument that Henri Matisse's complete body of work advances.