I am frequently asked if it is appropriate to carry an umbrella in any color other than black in a professional environment.
Yes, the only situations which would require black umbrellas only would be a black tie event or a funeral. By all means use a colored or printed umbrella in the business setting. It is much easier to find your umbrella amongst all the black umbrellas left at the front door.
It is more important to own an umbrella in good condition than to worry about the color. A ragged umbrella or any ragged accessory will lower your professional image.