Juan Luna dwells firmly in the shadows, with no more than a whisper of light. Cool tones set the register here - the blues and greens easily outweigh any warm accents. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. #1E190F claims 33.6% of the surface, functioning as the work's tonal foundation. Only 7.1% is devoted to #55432D, yet that small allocation delivers the palette's entire chromatic tension. Spanning 54 units on the value axis, the palette achieves the balance between tonal flatness and fragmentation. This tonal restraint is characteristic of the Juan Luna approach: colour serves light, not the reverse. In the context of Juan Luna's full range of palettes, group 4 represents one movement in an ongoing chromatic dialogue.