Mid-key values give Armand Guillaumin its characteristic quietness - nothing blazes, nothing disappears. Warm and cool are kept in productive tension, creating the kind of chromatic harmony that sustains the eye. All colours lean toward grey, building depth through value rather than colour punch. The highest-chroma note - #BC5C3B - appears at just 7.3%, deployed as a precision accent against the quieter ground. From deepest dark to palest light, the palette traverses 62 units of the value scale - a span that creates natural depth. This is the light Armand Guillaumin preferred, made measurable.