After perusing this myself (Using the Text Color Classes in Connor Leech's answer)
Be warned to pay careful attention to the "navbar-text" class.
To get green text on the navbar for example, you might be tempted to do this:
<p class="navbar-text text-success">Some Text Here</p>
This will NOT work!! "navbar-text" overrides the color and replaces it with the standard navbar text color.
The correct way to do it is to nest the text in a second element, EG:
<p class="navbar-text"><span class="text-success">Some Text Here</span></p>
or in my case (as I wanted emphasized text)
<p class="navbar-text"><strong class="text-success">Some Text Here</strong></p>
When you do it this way, you get properly aligned text with the height of the navbar and you get to change the color too.