The Best What Do The Numbers And Letters Mean In Hair Color Ideas. Here's a break down of what some of those letters and numbers mean. Lower numbers mean richer, darker colors and indicate that the dye is loaded with pigments.

Here is a quick guide to help you understand what they mean: “ not only is it interesting, but it’s kinda important for you to know how to read the hair color chart numbers so you can choose the perfect hair color for. When a shade number has two tones after the level, the second tone is called a “reflect” and adds a hint of.