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 PV14 Cobalt Violet.
Who makes it
PV14 Cobalt Violet3
- PV14LF I Semi-opaqueSeries 640 ml tube · 60 ml tube* · 225 ml tube · 1000 ml can*About Michael Harding
- Old Holland Classic Oil Colours No. E31PV14LF ISeries E18 ml tube* · 40 ml tube · 60 ml tube* · 125 ml tube · 225 ml tube · 475 ml tin* · 1000 ml tin*About Old Holland
- Maimeri Puro Oil Colours No. 451
PV49 Cobalt Violet1
- Williamsburg Handmade Oil Colors No. 6000728PV49LF I TransparentSeries 8Discontinued37 ml tube · 150 ml tube · 8 fl oz can* · 16 fl oz can*About Williamsburg
Sizes are the ones each line is sold in; marks a size only some colors come in. Check the store for a particular color.