Changing Post Header Font colour

Hi all, I have been trying to figure out how to change the font colour of the header text on each individual post. The website is http://www.qhra.com.au For example I want to change where it says on the home page Queensland Human Rights Awards 2014 to a different colour, same goes for all headers on all pages. If anyone can help or let me know where to exactly look for the line in the code it will be greatly appreciated.