2 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 PV16 Manganese Violet.
Who makes it
PV16 Manganese Violet3
- Holbein Artists' Oil Color No. H333
- PV16LF I Semi-transparentSeries 440 ml tube · 150 ml tube · 300 ml cartridge · 500 ml tin · 1000 ml tin* · 4000 ml tin*About Art Spectrum
- Maimeri Puro Oil Colours No. 460
PV15 Ultramarine Violet + PV16 Manganese Violet1
- M. Graham Artists' Oil Color No. 116
Sizes are the ones each line is sold in; marks a size only some colors come in. Check the store for a particular color.