Color correction /matching

First of all I want to wish a happy new year to everyone with a lot of health and a lot of blendering, then I would like to ask some questions regarding blender 2.91, where did the node color correction or grading go? I don’t know how to do after I have done camera tracking and imported my animated model into the scene how do I have to adjust the colors and light of the model to make it look like it is really in the scene, and not “cropped” there are other systems to use? in blender 2.91? or do i need to install extra some add-ons? I don’t find a tutorial that talks about how to adjust the colors and the light in the imported models in the camera tracking scene … thanks for some answers …