Osias Beert works almost entirely in the lower half of the value scale, privileging depth over brilliance. Heat pervades this palette; warm chromatic identities outweigh cool ones at almost every weight. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. 48.9% of the palette belongs to #0D0B0C, a concentration that makes it the unmistakable visual centre. The most saturated colour, #865933, is reserved to 4.3% of the surface, where it acts as a focal punctuation. A value spread of 70 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. The combination of low values, muted chroma, and compressed range is the signature of the Tonalist mode - painting as atmosphere. Osias Beert's palette 4 carries its own internal logic while remaining in conversation with the artist's broader colour intelligence.