0 Pure black (死黑) I Near black, with slight tonality but no texture (不是死黑,但是除了黑,什麼紋理都無法表現。) II Textured black; the darkest part of the image in which slight detail is recorded III Average dark materials and low values showing adequate texture IV Average dark foliage, dark stone, or landscape shadows V Middle gray: clear north sky; dark skin, average weathered wood VI Average Caucasian skin; light stone; shadows on snow in sunlit landscapes VII Very light skin; shadows in snow with acute side lighting VIII Lightest tone with texture: textured snow IX Slight tone without texture; glaring snow (不是死白,但是除了白,什麼紋理都無法表現。) X Pure white: light sources and specular reflections (死白)