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 PG7 Phthalo Green.
A hue: a substitute for Viridian, made with other pigments.
Who makes it
PG7 Phthalo Green2
- Holbein Artists' Oil Color No. H271PG7LF I Semi-transparentSeries AHue20 ml tube · 40 ml tube · 50 ml tube* · 110 ml tube*About Holbein
PB36 Cobalt Turquoise / Cerulean + PG7 Phthalo Green1
- Daler-Rowney Georgian (student)Student No. D111014382
Sizes are the ones each line is sold in; marks a size only some colors come in. Check the store for a particular color.