Theodule Ribot occupies the comfortable middle of the value scale, avoiding both extremes to hold the eye in a sustained middle grey. Warm and cool are kept in productive tension, creating the kind of chromatic harmony that sustains the eye. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. The saturated accent, #5E4A31, registers at 7.9% - sparse enough to feel like a deliberate surprise. 65 units of value range underpin the palette's structural clarity: the eye always knows where light falls. Taken together, these qualities constitute Theodule Ribot's chromatic voice - distinctive enough to be read across an entire body of work.