It's spring time, and clients are inquiring about new haircolor! If you see a picture in the magazine that you like, then use it for color placement and styling decisions only. You should look at a swatch book to see what haircolor choices are available. Please remember the swatches are on "white" hair so unless you are starting out with "bleached out" hair, then a colorist will know what needs to be done to get you in the family of the color look that you are trying to achieve. You basically have to decide if you want any reds or coppers present or purely golden yellow or blonde toned down to a light brown.
Everyone except redheads fall into the natural level chart above. Level 1 is black and Level 10 is a blonde. So as a colorist, we have to get you from your natural level to your desired color. Sometimes lightener or hair bleach is a must if you are a level one through level four which are all forms of jet black to darkest brown.
Many times with haircolor, it is best to work with your hair's natural color lift and just tone it. We as colorists just need to know how visible you want the highlights to look. Subtle? or Showstopping in a good way?