有机颜料是不溶性有机物,通常以高度分散状态加入底物而使底物着色。它与染料的根本区别在于,染料能够溶解在所用的染色介质中,而颜料则既不溶于使用它们的介质，也不溶于被着色的底物。不少颜料和染料在化学结构上是一致的,采用不同的使用方法,可以使它们之间相互转化,比如某些还原染料和硫化还原染料，若其还原成隐色体,则可以作为纤维染料;若不经还原,可以作为颜料用于高级油墨。有机颜料广泛地用于油墨、油漆、涂料、合成纤维的原浆着色，以及织物的涂料印花、塑料及橡胶、皮革的着色等,其中油墨的颜料使用量最大。
3-Amino-5-chloro-2-hydroxybenzenesulfonic acid
4-Ethoxy-2-nitroaniline
Sodium 4-Amino-5-hydroxy-2,7-naphthalenedisulfonate Hydrate
2-Amino-1,5-naphthalenedisulfonic acid
5-Amino-2-(phenylamino)benzenesulfonic acid
2-(3-Amino-4-hydroxyphenylsulfonamido)benzoic acid
3-Pentadecylphenol
Naphthalene-2,7-disulfonic acid
2-Amino-N-ethyl-N-phenylbenzenesulfonamide
(R)-(6-Methoxyquinolin-4-yl)((1S,2S,4S,5R)-5-vinylquinuclidin-2-yl)methanol hemisulfate dihydrate
2-Amino-5-chloro-4-methylbenzenesulfonic acid
1,3-Bis[4-(dimethylamino)phenyl]-2,4-dihydroxycyclobutenediylium dihydroxide, bis(inner salt)
2-Chloro-5-sulfamoylbenzoic acid
4-Formylbenzene-1,3-disulfonic acid
4-Hydroxynaphthalene-1-sulfonic acid
7-Aminonaphthalene-1,3,5-trisulfonic acid
3,5-Diamino-4-methylbenzenesulfonic acid
2-Methylbenzene-1,4-diamine dihydrochloride
1,5-Diphenoxyanthracene-9,10-dione
Sodium 4-((4-(diethylamino)phenyl)(4-(diethyliminio)cyclohexa-2,5-dien-1-ylidene)methyl)benzene-1,3-disulfonate
N-(3-(Bis(2-hydroxyethyl)amino)-4-methoxyphenyl)acetamide
Sodium 5-hydroxynaphthalene-1-sulfonate
Leishman Stain
N-(3-(Bis(2-hydroxyethyl)amino)phenyl)benzamide
