Charles Sillem Lidderdale occupies the comfortable middle of the value scale, avoiding both extremes to hold the eye in a sustained middle grey. Charles Sillem Lidderdale tilts toward cool - blues and silver-greys carry the structural weight. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. #6D6727 functions as the palette's exclamation mark: highest chroma, lowest percentage (6.7%). 57 units of value range underpin the palette's structural clarity: the eye always knows where light falls. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. Taken together, these qualities constitute Charles Sillem Lidderdale's chromatic voice - distinctive enough to be read across an entire body of work.