青天 (qīngtiān) literally means 'blue sky' — 青 (qīng) refers to a deep blue or bluish-green color, often used in classical Chinese for the clear, cloudless sky, and 天 (tiān) means 'sky' or 'heaven'. Together, they evoke an image of vast, serene, unobstructed blue sky, symbolizing purity, openness, and natural clarity.

Beyond its literal meaning, 青天 carries strong cultural and historical connotations of justice and fairness. In traditional Chinese literature and opera, upright officials like Judge Bao were called 青天老爷 ('Lord Blue Sky'), reflecting their role as impartial, morally clear arbiters who bring light to injustice — just as the blue sky shines brightly over all without bias. This dual meaning makes 青天 both a poetic nature term and a powerful metaphor for integrity and righteous authority.