When you use the services of a real professional, go to the appointment with an open mind. You may have your heart set of pale blond, but if the colorist can prove to you that a deep strawberry is really your best shade, listen to her. She is trained to match color with skin tone. She knows what will work, and what won't.
In any case, it's certainly true that coloring your locks can change the way you look. It can revitalize things taking them from boring to fresh and new. Which is why so many of us have wholeheartedly embraced coloring our locks. You just want to make sure the change is for the better.