I made some swatch libraries to make my design life easier. One color swatch library is based on the Bella + Canvas 3001 t-shirts (the super soft ring-spun cotton collection I use).
Why not share them? Here’s a free download.
They probably aren’t for everyone, but if you use Adobe Illustrator to design t-shirts to be printed on B+C 3001 series, or the other tee collections below, these will make your color mock-up life a little bit easier.