Helena Pro: Color Changes

I want to make two color changes to the Helena Pro theme I am using. First: THE LOGO SLIDER- that shows a number of images of historical people. I want the background color to go from TAN to MAROON #600009 SECOND: The MAIN ENTRY AREA (left of the sidebar) needs to go from TAN #e2d9c0 to the more yellow-beige color like the SIDEBAR #e2d9c0 Previously, Skandha helped me with similar issues and I hope he is able to help me again. I have taken my site out of "Maintenance Mode" to enable Skandha to help me. The link is: https://cottonsbostons.blog/ Thanks for your help in advance.