How to make menu item text different colors

Rebuilding an old site in WP. I'm trying to make the menu item text different colors.
http://www.steveelson.com/wordpress/listen/. I can't figure out how to write the css.
I tried this, but it doesn't work.
div#menu1 ul.rMenu li a:link#menu-item-37 {color: #0D5B7B;}