Change header color on different sections

Hello, this is probably a noobie question, but in terms of css I am :)

I use Generate press as a theme and Elementor as a page builder. I have a sticky header consisting of three columns in which I inserted respectively:
column 1: green logo
column 2: black text color menu
column 3: green social icons

What I would like to do is change the colors of the header on a specific section of the site, like this:
column 1: white color logo
column 2: white text color menu
column 3: white social icons

I guess it can be done by inserting the additional css in the section, but I have no idea what to insert. Your help on the code would be greatly appreciated, thanks.