The palette of Jules Joseph Lefebvre sits in the lower register of the value scale - dense, contained, and weighted. Jules Joseph Lefebvre keeps warm and cool in parity, a balance that lends the work a perceptual shimmer. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. The dominant colour, #12100D, takes 27.7% of the total area, establishing the overall mood before any other hue is introduced. Only 8.5% is devoted to #4E2F0D, yet that small allocation delivers the palette's entire chromatic tension. At 69 units of value range, the palette has the tonal breadth to sustain complex spatial readings. Together these qualities place Jules Joseph Lefebvre firmly in the tonal tradition - concerned with mood and atmosphere rather than chromatic display. In the context of Jules Joseph Lefebvre's full range of palettes, group 5 represents one movement in an ongoing chromatic dialogue.