Background for the column in a row

I need to change the background of the column , like the demo of the theme sydney , two different backgrounds are used for the facts and who we are , i tried but ican set color for the entire column
thanks in advance

I can not find the way to change the background color of some widgets, such as:
Sydney FP: social network profiles
Sydney FP: information

Thank you

Hello @joeldejo and Diego.

@joeldejo, please provide some explanatory screenshots and a link to your website. You can upload screenshots to your WordPress Media Library and share a link, or you can use one of the online services (Google Drive, Dropbox, etc.).

Diego, please create a new topic for your issue in order to make it easier to help you.

Kind Regards, Roman.