Are you planning on keeping your hair color the same for a while? Then select your dyed hair color.

Do you drastically change your hair quite often (from black to blonde, for example)? Select your natural hair color.

Do you often switch up the color of your hair to make it a bit darker or lighter but dus your hair color stay kind of the same? Select your current hair color. The colors you look good in now will continue to look nice on you!