How do I change color of text

I would like to change the color of the text on this page

http://pulsohispano.com/groups/exalumnos-colegio-t-w-anderson/

As you can see the text is gray and hard to read on a white background. How do I change it?

And do you have a Spanish version of this theme? I can work on it if necessary. I am a native speaker and translation is also part of my profession

Thanks