Everyone knows that oil and water don't mix. So if you want to color chocolate you can't use gel paste or airbrush colors as they are water based! AmeriColor oil candy colors are specially formulated to work with high fat products and compound chocolates (candy melts, chocolate wafers).
To use, melt your chocolate as you usually do. Squeeze out the color a small amount at a time and mix it in until you get the desired shade. If your chocolate gets too thick to work with, you may need to add a small amount of paramount crystals or a small amount of shortening to thin the chocolate.
If you want to color chocolate and don't have candy colors or need a special color, use AmeriColor Flo Coat. With this product you can melt your chocolate, cover it with a thin layer of flo coat (5 parts of Flo-Coat to 1 part of Soft Gel Paste) and then place your soft gel paste color on top of the layer of flo coat.