Pieter Gerritsz. van Roestraten is low-key throughout, a quality associated with Obsidian Sienna - deep shadows dominate the composition. Pieter Gerritsz. van Roestraten builds on cool foundations: the palette favours the blue-cyan-green arc. All colours lean toward grey, building depth through value rather than colour punch. A single dominant - #1A1A14 at 27.1% - sets the character of the whole composition. The most saturated colour, #4F3F24, is reserved to 6.4% of the surface, where it acts as a focal punctuation. The value range of 53 units sits in the comfortable middle: enough depth, enough light, neither extreme. The combination of low values, muted chroma, and compressed range is the signature of the Tonalist mode - painting as atmosphere. Palette 3 sits within the larger chromatic argument that Pieter Gerritsz. van Roestraten's complete body of work advances.