Color changes

[arreferee]

I'm trying to figure out how I can change the color of the default theme and haven't had much luck.  I would like to change the line at the top (http://www.simplemachines.org/community/index.php) that has Simple Machines on the left and Unread Posts on the right from the blue color to black.  I would like to change all of the blue sections like that to black.  Where can I find that? 

[kat]

index.css, inside your theme's "css" directory.

[Aleksi "Lex" Kilpinen]

If you'd like to make the theme completely a different color, perhaps this could help http://www.simplemachines.org/community/index.php?topic=439031.0