Change Color of static homepage

Hi, I am having some issues with changing the color of the "static homepage" (set in "homepage settings") of my website, I am using the Catch Fullscreen Theme. I have added an Image in "Header Media", but the static homepage is a shade of pink - I would like to change that color but couldn't find where. In your demo, the "Featured" section has a blue background (mine is pink), I would like to change that background color on my website. Could you please let me know where I can change this? I would really appreciate your help. Thank you and best regards, Lisa