Here are some examples of common organic pigments:
1) Azo pigments: (exemplary)
Monoazo pigments
C.I. Pigment Yellow 74
Disazo pigments
C.I. Pigment Orange 34
C.I. Pigment Yellow 83
Naphthol / β-naphthol
C.I. Pigment Red 112
C.I. Pigment Orange 5
2) Non-azo or polycyclic pigments
Phthalocyanine
C.I. Pigment Blue 15:1
C.I. Pigment Blue 15:3
C.I. Pigment Green 7
Chinacridon
C.I. Pigment Red 122
C.I. Pigment Violet 19
Diketopyrrolo-pyrolle (DPP)
C.I. Pigment Red 254
Dioxazine (Carbazole Violet)
C.I. Pigment Violet 23
In contrast to inorganic pigments, organic pigments allow achieving significantly higher tinting strength and more brilliant shades. Due to their comparatively very small average particle size, organic pigments tend to require a higher level of dispersion energy and have a lower opacity and therefore appear more transparent.
The fastness properties vary considerably between the different chemical classes and are often significantly worse than those of inorganic pigments. Here, an individual consideration must be made in any case for the selection of suitable pigments. This applies not only to light and weather fastness, but also to solvent and migration resistance, efflorescence behaviour, overpaint fastness, heat resistance etc.