Add a background color to my Sidebar?

Here’s one way:

1. In the admin page, choose Presentation > Theme Editor.
2. Look through your style.css file for “#sidebar” and find color information inside those curly brackets.
3. Change at will, then save.

Don’t know your CSS? Start learning.

There is no color information. I tried adding
color:#1E90FF
But it didn’t work, is there something I am missing

Color will change the text color not background color it should be this here to change background color.
background-color: #1E90FF;

This is what it looks like, it still isn’t changing anything:

#sidebar {
float: left;
background-color: #1E90FF;
width: 200px;
font-size:0.9em;

}

That should have changed it. Do you have a link to the actual site to see what is happening.

https://bfreedom.com

your theme doesn’t have any divs that are using that id.

In other words, look at your source, search for sidebar, specifically, look for <div id="sidebar"> –its not there ??

that’s why that’s not doing anything.

Some of your sidebar stuff is inside a textwidgets <div>, some is still inside the content div>. You also need to address your validation errors.