Hi Tom,
You could change this depending on where the paragraph is? so...
If the a paragraph is is an area called content it could be
#content p {
color: #fff;
}
or if the a paragraph is in a side area
#sidebar p {
color: #000;
}
or as levi said, use a class like
<p class="red-text"> Blah blah</p>
in the stylesheet you would have
.red-text {
color: #ff0000; /*red paragraph text */
}