The value structure of Jan van Huysum is mid-key: quiet, controlled, and cohesive. Cool hues prevail: blues, greens, and greys anchor the palette's emotional temperature. All colours lean toward grey, building depth through value rather than colour punch. The highest-chroma note - #917147 - appears at just 13.3%, deployed as a precision accent against the quieter ground. From deepest dark to palest light, the palette traverses 55 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. Taken together, these qualities constitute Jan van Huysum's chromatic voice - distinctive enough to be read across an entire body of work.