Mid-key values give William Williams its characteristic quietness - nothing blazes, nothing disappears. William Williams tilts toward cool - blues and silver-greys carry the structural weight. Muted throughout, the palette achieves its effects through value and temperature rather than chromatic force. #A0C988 delivers the chromatic peak at only 1.4% - a small shot of colour with outsized visual impact. 73 units of value range underpin the palette's structural clarity: the eye always knows where light falls. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. Palette 4 sits within the larger chromatic argument that William Williams's complete body of work advances.