Have you ever wondered what the numbers on hair color mean? Or what about the ones marked on hair extensions packaging? or the ones on wig boxes. 1b? T1b/30? TT1b/30? What?-Disclaimer- This will not make you a color expert but it will give you a better idea on what those numbers stand for.The first thing you need to know is that all brands carry a different “numbering system” (let’s call it that for now) for hair colors. Most brands follow a similar pattern. PLAIN/BASIC COLORS: 1-Jet Black 1B-Natural/Off Black 2-Dark Brown 4-Medium Brown 6-Light Brown 8-Extra...