Isaac Levitan is strongly light-biased - shadow is suggested rather than declared. Isaac Levitan tilts toward cool - blues and silver-greys carry the structural weight. Muted throughout, the palette achieves its effects through value and temperature rather than chromatic force. #AA9761 functions as the palette's exclamation mark: highest chroma, lowest percentage (4.7%). A value spread of 67 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source. Isaac Levitan's palette 5 carries its own internal logic while remaining in conversation with the artist's broader colour intelligence.