The color of a list layout is created by Artisteer automatically, but Artisteer does not allow you to change the color within the software.
The only way you can change the color of a list is to put the template into the website, and edit the CSS (NOT HTML.) Once into the CSS (template.css) search for TD.sectiontableheader
Under the section table header, you will find a color for the background-color. Change that color to what you want. Then change the color of the text, which is behind just "color"