The problem of the red wallet you mentioned may be as folk as the red belt and the red insole.
If you have to say 1, 2, 3, it should be said that you look at the eight characters from the date of birth. What color suits you better?
And if there is no time of birth, the eight characters are invisible.
Of course, if you are just looking for comfort, go directly to the entertaining Zhouyi and numerology books. That thing can tell a person's likes and dislikes according to the year of birth.