Frans Floris de Vriendt occupies the comfortable middle of the value scale, avoiding both extremes to hold the eye in a sustained middle grey. Yellow, ochre, sienna: warm hues that Frans Floris de Vriendt deploys as the palette's primary energy. Saturation is measured and controlled, giving the palette presence without visual aggression. The highest-chroma note - #482909 - appears at just 9.6%, deployed as a precision accent against the quieter ground. Value range is moderate at 42 units - enough contrast for legibility, not so much as to fragment the tonal unity. Palette 4 sits within the larger chromatic argument that Frans Floris de Vriendt's complete body of work advances.