'白色' literally means 'white color' and functions as a noun referring to the color white. The first character 白 (bái) means 'white' on its own, while 色 (sè) means 'color' or 'hue'. Together, they form a standard two-character noun for the color white — much like how English uses 'red' as both adjective and noun, but in Chinese, color names often require 色 to function unambiguously as nouns (e.g., in lists, comparisons, or when standing alone).

This term is commonly used in everyday contexts such as describing clothing, food, animals, or objects — for instance, '白色衬衫' (a white shirt) or '白色老虎' (a white tiger). It appears frequently in art, design, fashion, and nature descriptions. Unlike adjectives, 白色 cannot directly modify a noun without a structural particle like 的 in formal writing, though colloquially it’s often used bare before nouns (e.g., 白色杯子).