清白 (qīngbái) literally combines 清 (qīng), meaning 'clear' or 'pure', and 白 (bái), meaning 'white' — together evoking the image of unstained whiteness, symbolizing moral purity and freedom from guilt. It primarily describes a person’s innocence in the face of false accusation or suspicion, especially in legal or ethical contexts. It can also refer more broadly to integrity, honesty, and upright character — someone who lives with transparency and clean conscience.

The term carries strong moral weight and is often used in formal or serious discourse, such as court proceedings, public debates about reputation, or personal affirmations of virtue. While it may occasionally appear in literary or poetic expressions, it is rarely used casually. Unlike simpler words for 'innocent' like 无辜 (wúgū), 清白 emphasizes enduring moral clarity rather than just factual non-guilt — suggesting both innocence and unimpeachable character.