Color can be used to enhance or completely change your natural hair shade, but it's vital to choose the right color, and the correct process to achieve that look.
Choosing your color
Hair and skin are colored by the same substance - melanin. That's why the color of your hair generally goes with your skin tone. Those with dark olive skins have dark brown hair, while white blondes have very pale skin. Finding a color that suits you has to reflect this. The simplest way to avoid mistakes is to choose a color no more than two shades lighter or darker than yours, it will always suit you. If you're using highlights (lighter streaks in the hair) or lowlights (darker streaks) you can go up to four shades different with no consequences.
If you are totally changing your color, however, you have to pick your shade carefully. The wrong one can age you by years, make you look pale and washed out, or cause your features to vanish even with a truckload of makeup. Like makeup, your choice should be made on whether you have cool or warm tones in your skin. Cool-toned skins need ashy or light blonde and brunette shades and bluey blacks, warm skins need shades based on coppers or reds and brown-blacks rather than true blacks. And remember, the shade on the box is normally what you get if you put the color on white hair, what will happen on yours could be very different.