I always knew graphic designers were a little goofy, but come on:

COLORSTROLOGY™ Widget combines astrology and numerology with intuitive wisdom and the spiritual power of color to create a personal color for every day and month of the year. By blending the colors that are associated with the sun sign, ruling planet, and elements such as fire, earth, air or water, with the numerological vibration of each day, the colors for the COLORSTROLOGY calendar are selected, along with key words that best describe the personality traits associated with that color and day.

This is part of Pantone’s web site, and they even offer a Dashboard widget for offline shweng fui magic color selection. And there’s a book, and an official “colorstrology” web site, with a Flash intro that suggests it’s completely serious.