This is a test:
\color{red}{\text{this is a test}}
\color{blue}{\text{this is a test}}
\color{green}{\text{this is a test}}
So, we can encolorate text after all, but it’s a rather messy process.
This is the coding, but remove the initial x.
x$\color{red}{\text{this is a test}}$
I just created a .doc with the different colors entered for quick copy-and-paste…