黛: The color of deep blackish-blue, akin to the traditional Chinese pigment known as "qing dai," often conveys an image of elegance and beauty. When used in names, it tends to leave a favorable impression, fostering good relationships and attracting positive connections.

兰: The orchid, one of the Four Gentlemen among flowers, often symbolizes individuals of noble and virtuous character in names, which is beneficial for garnering affection and respect from others.