Hair color ideas are not stand alone thoughts and need to be combined with your skin tone and personality to give you the right match. Never copy someone else's hair color idea blindly as it just might be completely wrong for you. If you are coloring your hair for the first time, you can seek professional help at the salon. Otherwise, the internet is a good place to start with as well:
Color product offer the entire range of hair color available with them and what can be done with it. However, do remember that they are using professional models (with amazing skin) and you would need to discount some of the ideas that they demonstrate.
Don't bother to read too many of these as each one of them is likely to have their own version of hair color palette! Once you have short-listed a range of hair color options, try looking for pictures of people with similar coloring and how they would look in it. Many salons have sophisticated software which helps conjure up an image of you with the hair color and it might be worth the money you spend on it.
Some of the most interesting hair color ideas, however, do not come from professionals but from celebrities who sport unique looks to stand out in a crowd. Not only do they manage to start off a fad, they also help create some very interesting hair color ideas. So if you have a favorite movie star you associate yourself with, you can always check out the hair colors they have sported now and in the past. Try not to choose a hair color idea which does not suit your personality as that is something you will be very uncomfortable in once you get it done!