List Of Hair Base Color Chart References. Web most hair charts have numbers for hair color based on the international color chart ( icc ). 1 is black, 5 is light brown, 6 is dark blonde, 7 is blonde and 10 is the lightest blonde.

Web the standard measurement for hair colour levels is on a scale of one to 10, with level one being the darkest (i.e. You can’t mix other colors to get these primaries. The very first thing you must understand before coloring your hair is the levels of hair color.