Changing the background color on a sidebar

Change:

.sidebar  {
background:#fff;
}

in style.css to whatever color code you want.

I need to have a different color on each sidebar.. On each page..

In that case you’ll need to use inline CSS in conjunction with a conditional. Or add additional classes to the sidebar container via a conditional and then add those new classes to your stylesheet.

I have no idea to start with conditionals