[Ethangilmore]

Which are types of natural colourants?

[Borek]

Please elaborate on what you already now and what you were able to google, this question is so wide and in many ways ambiguous that it is impossible to answer (or, answer requires writing a thick book).

[SatishD]

Natural colourants are derived from plants, animals, and micro-organisms. Through the years,curcumin,betanin,anthocyanin, lycopene, beta-carotene and their several mutations have gained grounds as core food and drug producing elements. However, they come with high procurement and production costs.

Here are the six most popular natural colourants you can pick right off the shelf:
http://chemarc.blogspot.in/2018/02/-natural-colourants-you-should-pick.html