Our permanent green is made from a blend of two pigments: hansa light yellow and phthalo green. While we generally formulate paint from single, pure pigments, leaving the blending of colours in the hands of the artist, the mid green colour area has less pigments available than most other areas. Because phthalo green has extremely high tinting strength, it can be difficult to work with, overwhelming the other colours in a mix. Permanent green offers a convenient starting point for creating hues in the mid green area. It is semi transparent and has extremely good lightfastness.