John Singer Sargent occupies the comfortable middle of the value scale, avoiding both extremes to hold the eye in a sustained middle grey. The dominant temperature is warm, with earth tones and fire-hues setting the emotional key. All colours lean toward grey, building depth through value rather than colour punch. At 40.0%, #1C1415 functions less as a colour accent and more as a complete atmospheric environment. #C4864A delivers the chromatic peak at only 3.4% - a small shot of colour with outsized visual impact. A value spread of 67 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. John Singer Sargent's palette 15 carries its own internal logic while remaining in conversation with the artist's broader colour intelligence.