Values in Jérôme-Martin Langlois rest in the mid-range - neither dramatically lit nor steeped in shadow. Yellow, ochre, sienna: warm hues that Jérôme-Martin Langlois deploys as the palette's primary energy. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. The saturated accent, #32190D, registers at 7.3% - sparse enough to feel like a deliberate surprise. The value range spans 68 units across the palette, providing the full gamut from deep shadow to near-white and ensuring clear tonal hierarchy. Taken together, these qualities constitute Jérôme-Martin Langlois's chromatic voice - distinctive enough to be read across an entire body of work.