3 different recipes. Brands sell different pigment mixtures under this name, so they won't all look or mix alike. Compare the pigments below; the most common is PR149 Perylene Red + PY83 Diarylide Yellow HR.
Who makes it
PR149 Perylene Red + PY83 Diarylide Yellow HR3
- Grumbacher Pre-Tested Artists' Oil No. P005
PO71 Pyrrole Orange1
- Schmincke Mussini Resin-Oil No. 10239
Sizes are the ones each line is sold in; marks a size only some colors come in. Check the store for a particular color.