William Segar occupies the comfortable middle of the value scale, avoiding both extremes to hold the eye in a sustained middle grey. Cool tones set the register here - the blues and greens easily outweigh any warm accents. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. The highest-chroma note - #354653 - appears at just 5.0%, deployed as a precision accent against the quieter ground. The full value range is 58 units: broad enough to build convincing three-dimensional form. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source. Taken together, these qualities constitute William Segar's chromatic voice - distinctive enough to be read across an entire body of work.