The SC/Home/Requests background color is set in file main.css (line 194).
To change the background color, please follow the below procedure.
Folder: C:\Program Files\CA\Service Catalog\filestore\themes\CA_Technologies_R7\css
File : main.css
2. Goto Line 194 and search for:
3. Then change the color code into (as an example):
4a. After you applied this change and saved the main.css file, you can refresh(F5) the page in the browser.
4b. And the changed color will be visible immediately.
The above named folder could also be 'CA_Technologies_R7_Full_Screen'.