Is there any manual page for colored shell output?

You know, that colorized output made by special char sequences, for example: echo -e "\e[34m Hello\n \e[0m" This will produce word "Hello" colored in blue. To do this I had to search on the web, and it is hard, because different sources may say something different. I thought, that there must be some manuals, but I couldn't find them. Even with apropos color or something similar. So, the question is - where I can find reliable manuals?