Method of matching background color after using chromakey?

In Adobe After Effect you can use very interesting method of correcting color - by view only one color channel of image and background at some time. Can't post url, but you can find in on youtube by text "TUTORIAL MATCHING COLOR GREEN SCREEN SIMPLE | NYAMAIN WARNA DI AFTER EFFECTS" or "Shoot Your Friends: Greenscreen".

Is there any a way to reproduce this workflow on Davinci Resolve? Or maybe someone can suggest a better way?