Values in Eugeniusz Zak 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. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. The saturated accent, #AB633D, registers at 7.9% - sparse enough to feel like a deliberate surprise. At 51 units across the value scale, the palette keeps contrast readable without letting it dominate. Taken together, these qualities constitute Eugeniusz Zak's chromatic voice - distinctive enough to be read across an entire body of work.