煊: Splendid and illustrious, originally signifying warmth, it describes a reputation of great renown and a presence of formidable influence.
灿: The original meaning is brilliance, radiance, vividness, and dazzling splendor. When used in personal names, it conveys the connotations of being open and upright, with a bright and promising future.
Meaning: Xuān signifies brightness and warmth, while càn represents radiance and splendor, symbolizing a dazzling and promising future.