Alexandre Jacob works in the upper reaches of the value scale, creating an atmosphere of brightness and expansiveness. Cool hues prevail: blues, greens, and greys anchor the palette's emotional temperature. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. Rather than a studied accent, #AD8C65 takes 4.0% - a bold allocation that saturates the composition's atmosphere. The value range of 46 units sits in the comfortable middle: enough depth, enough light, neither extreme. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. Taken together, these qualities constitute Alexandre Jacob's chromatic voice - distinctive enough to be read across an entire body of work.