Values in Ukiyo-e rest in the mid-range - neither dramatically lit nor steeped in shadow. Warm and cool are kept in productive tension, creating the kind of chromatic harmony that sustains the eye. The absence of saturated colour is itself an expressive choice: this is a palette of restraint and atmosphere. #1D3158 functions as the palette's exclamation mark: highest chroma, lowest percentage (3.1%). 66 units of value range underpin the palette's structural clarity: the eye always knows where light falls.