Jean Arp sits in the centre of the value range, lending the palette a sense of even, sustained light. Heat pervades this palette; warm chromatic identities outweigh cool ones at almost every weight. A restrained, mid-chroma palette: every hue is present and legible, but nothing shouts. The chromatic peak belongs to #F82C03, and at 18.5% it dominates, not decorates. 72 units of value range underpin the palette's structural clarity: the eye always knows where light falls. Jean Arp's palette 4 carries its own internal logic while remaining in conversation with the artist's broader colour intelligence.