Change header colors

I am using the Geocraft theme and I need to change the header cool into a white color which is not listed in the colors options. Can you help me please.

 

Hello,

Paste the code given below in Custom CSS section
( Theme Options -> Styling Options -> Custom CSS) of your dashboard.

Code:

.header_wrapper .header {
background: #fff;
}

Thanks & Regards
Pramod