L'Oreal Majirel Here's a quick synopsis of how the Loreal colour numbering system works: The first number relates to depth, or how dark the colour is from blonde to black. 10 Lightest Blonde 9 Very light Blonde 8 Light Blonde 7 Blonde 6 Dark Blonde 5 Light Brown 4 Brown 3 Dark Brown 2 Darkest Brown 1 Black The second number relates to "tone". This is which tones are added to the depth to give you the finished effect for example copper or ash, so if you were to choose a base shade blonde…