I am using joomla 3 and bootstrap.min.js I am creating menu and giving special class in order to change hover, active, visited links and style of the menu. I could not find how
If you want to globally change the link colors (or pretty much anything else), create a customized download: http://twitter.github.io/bootstrap/customize.html
In response to your comment, if you want to override the supplied CSS, you need to create a rule that is more specific. So, either create a selector like #my-custom-container .item-109 .current .active
or add a !important
to your rule(s) for .item-109 .current .active