If you want to change the colors of your links on your project, or just a single page, you can do that easily by creating a new class in the css files. this is the path for my skin(you can find this css file in any skin): .../xwiki/xwiki/webapps/xwiki/skins/albatross/wiki.css

and here i have made my special class to use in tables, where i have my links. this is the code from the wiki.css that i have added:

and now in the xwiki i can use my class "my table" for my table like this:

I hope I could make myself understood, I am not that good at explaining enjoy.