Franz Anton Zeiller sits in the centre of the value range, lending the palette a sense of even, sustained light. Warm hues command this palette; Franz Anton Zeiller favours the reds, oranges, and yellows of firelight and earth. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. The highest-chroma note - #A9663E - appears at just 4.0%, deployed as a precision accent against the quieter ground. 50 units of value spread create a palette that is varied but unified - contrast in the service of harmony. Palette 4 sits within the larger chromatic argument that Franz Anton Zeiller's complete body of work advances.