Richard Doyle sits in the centre of the value range, lending the palette a sense of even, sustained light. A distinctly cool atmosphere runs through this palette: sky, water, and mist given colour form. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. The most saturated colour, #5A6140, is reserved to 4.8% of the surface, where it acts as a focal punctuation. Spanning 48 units on the value axis, the palette achieves the balance between tonal flatness and fragmentation. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. Richard Doyle's palette 4 carries its own internal logic while remaining in conversation with the artist's broader colour intelligence.