Here is a simple test to take:
Don't think about it, be spontaneous: close your eyes, lean back, and accept the first color that comes into your mind. Don't second guess yourself, don't analyze your choice. Your choice of a color tells you a lot about yourself.
This color does not have to be one you wear all the time, for different seasons and different days, even different times of day or occasions require a change in mood and color. But you do have one or more favorite colors that excite you the most and makes you feel alive.
Express yourself with color, it will bring you joy.