Bass...
Just about everything I mix up will start with 4 ounces of plastic. Baby Bass can be a strong color, depending on manufacturer, so sometimes I don't have to add too much. Another thing I try hard to maintain is transparency. That requires very little colorant at times. The Baby Bass can be added to hot plastic without any issues, so if you are looking to make a color similar to what you see here start with the 4 ounces and add maybe a drop of the X2 or three drops of any other. If you are using X2 and you're almost to where you want to be color-wise but a full drop is going to be too much, just dip a toothpick in the colorant about 3/16 of an inch and stir that into the plastic. If you're using a conventional colorant and are very close and want to tweak it just a notch dip that toothpick in the colorant about 3/4 inch and mix it in.
Something to keep in mind too is that computer monitors can show colors in a deceiving way. If you see a color made by anyone in a pic just go light on the colorant and add small amounts of it to adjust the color to your liking. Its way easier to work into a color than it is to try and weaken one.