沧（cang）
Name meaning
沧 (cang) means (of water, esp. the ocean) deep blue-green or (literary) cold.
Practical naming use
Use 沧 (cang) when the name should suggest (of water, esp. the ocean) deep blue-green, (literary) cold. Keep the full two-character name natural, readable and balanced for everyday use.
Pairing guide
Pair 沧 (cang) with characters such as 安 (An) for a steadier frame, 文 (Wen) for a cultured register, 清 (Qing) for clarity or 宁 (Ning) for calm. Let the second character clarify the intended register rather than doubling an already strong image.