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 PO73 Pyrrole Orange.
Who makes it
PO73 Pyrrole Orange5
- Holbein Artists' Oil Color No. H262
- Williamsburg Handmade Oil Colors No. 6001927PO73LF I Semi-opaqueSeries 737 ml tube · 150 ml tube · 8 fl oz can* · 16 fl oz can*About Williamsburg
- Daler-Rowney Georgian (student)Student No. D111014628
- PO73LF I OpaqueSeries 540 ml tube · 150 ml tube · 300 ml cartridge · 500 ml tin · 1000 ml tin* · 4000 ml tin*About Art Spectrum
- PO73LF I OpaqueSeries 640 ml tube · 110 ml tube · 300 ml tube · 1000 ml tin · 4000 ml tinAbout Langridge
Sizes are the ones each line is sold in; marks a size only some colors come in. Check the store for a particular color.