learning graphics code

I don't know C, or programming.

I went to a fucking design school and they showed me Processing. I got a job doing JS and sometimes AS3 crap. Sometimes I need to use Python.

Is C & OpenGL still relevant with all the really cool frameworks around?

Yes. But learn other languages. What I have in mind is Pascal, then C, then play around with Lisp for a while (just to see the cool concepts they have, the syntax makes it borderline unusable), then play around with Forth for a while, then assembly, then Python.

OpenGL might slightly fade in importance in the future in the face of OpenCL, but I don't use either of them so I wouldn't know/care.