Dyeing wood is a major pain. If you really want to do it, you can
get aniline dyes in a zillion colors, made specifically for wood, from
Garret Wade or any other decent woodworker's mailorder catalogue.
The results can be anything from glorious to a blotchy, horrible
mess, and there's no way to tell before hand. The finishers I know
avoid dye jobs like the plague.
Jay