Crown Pigments is our top recommendation here at WoodEpoxyWorld. They have great colors, but not so many that it is overwhelming. The vibrancy and beauty in these mica powder pigments is perfect for all types of epoxy work.
Black Diamond Pigments might be the most well-known in the industry. We have used their colors extensively, and agree that these are top-notch pigments. They are especially perfect for those who need a lot of options and want to really get a unique color without having to mix pigments together.
For a liquid colorant, ArtResin has beautiful colors that will pop in any piece. We highly recommend these for anyone who is searching for a great alcohol ink or liquid colorant for their pieces.