For font color of any questions or header phrase you can use basic html without quotes. With quotes it gives a short error in question making section. I would imagine you can use other html codes like bold, underline, font size...
Here's how I did my header phrase:
Code:
<font color=#FF0000>About You</font>
It works perfect and even displays in posted forum like that without the html codes ofcourse.
Example:
About You
As far as what grotesque said I too get the error after someone submits. It returns to invalid page...