黛（dai）
Name meaning
黛 (dai) means deep blue-black eyebrow pigment and, by extension, refined feminine elegance. In names it feels literary, dark-toned and delicate rather than loud.
Practical naming use
黛 (dai) is a highly Chinese beauty-image character. It suggests ink-dark brows, cool color, reserve and literary femininity. Used well, it feels elegant and memorable rather than merely pretty. Its strength is specificity: the name sounds culturally rooted, visually refined and emotionally restrained in a way generic beauty words often do not.
Pair 黛 (dai) with characters that keep the tone refined and breathable, such as 黛文 (Daiwen), 黛宁 (Daining), 黛安 (Daian) Dai'an or 黛清 (Daiqing).
黛文 (Daiwen): Dai contributes deep blue-black, elegant brow color; Wen adds culture, writing.
Reference
Bai Juyi · Song of Everlasting Sorrow
Historical / name-use references
林黛玉 (Lin Daiyu)
Lin Daiyu is one of the central figures in Dream of the Red Chamber. Her name directly contains the target character, giving it a major classical-fiction anchor for ink-dark elegance, sensitivity and literary beauty.