What color wallets do Capricorn people use?

I think what you like is that you are your favorite. The book says:

Capricorn's favorite color

The blue-green color system is rational, intellectual, calm and arrogant, and it is integrated with the rational temperament of Libra, Virgo, Capricorn and Aquarius. The use of blue-green wallets can highlight the calm and wise characteristics of these four constellations and enhance their intellectual beauty. Brilliant cool colors such as cyan and blue can stimulate the love style of Libra socialites and enhance their charm in the eyes of gentlemen and upper-class men; Low-concentration gray-green or gray-blue tones are most suitable for Virgo's low-key and exquisite love style, which can improve their love quality. Dark blue and green tones are most in line with Capricorn's strong sense of love responsibility and can improve the stability of their love; Bright colors such as sky blue and grass green can best express Aquarius' free and refined love concept and improve the quality of their peach blossoms.