cloudscape is strongly light-biased - shadow is suggested rather than declared. A distinctly cool atmosphere runs through this palette: sky, water, and mist given colour form. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. #33241C functions as the palette's exclamation mark: highest chroma, lowest percentage (3.2%). A value spread of 60 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky.