Change the color of a text with a hyperlink

[j-c]

I'm very pleased with Snippetmaster, i have many websites made for my clients in Xara Webdesigner that have a cms with Snippetmaster Pro.
Now, here's my problem : i want to change the color of a text with a hyperlink but it always returns to blue and purple. How can i do this, because my client wants the links in another color (mouse-off)?
Is there a way to change this in the css file of the editor tinyMCE?

Thanks in advance and sorry for my poor English.


J-C