Values in Frederick George Cotman rest in the mid-range - neither dramatically lit nor steeped in shadow. Cool tones set the register here - the blues and greens easily outweigh any warm accents. All colours lean toward grey, building depth through value rather than colour punch. #5F431C delivers the chromatic peak at only 8.7% - a small shot of colour with outsized visual impact. The full value range is 65 units: broad enough to build convincing three-dimensional form. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. This is the light Frederick George Cotman preferred, made measurable.