HTML or CSS code to change colour in header area, header text

As I said in title can someone give me simple HTML or CSS code to change colour in header area, header text, thanks in advance.

Hello @davglav,

Please provide a link to your website and some explanatory screenshots in order to illustrate what exactly you want to achieve.

You can upload screenshots to your WordPress Media Library and share a link, or you can use one of the online services (Google Drive, Dropbox, etc.).

Kind Regards, Roman.

Hello here is the link so as you can see my font is white same as background picture so I want to change font color for headline text https://drive.google.com/file/d/0B_Dq9k0KtwayaU1nUDU3c2lFZDA/view?usp=sharing

Hello @davglav,

You can try to add some background using the following CSS code.

You can add CSS code in Dashboard → Appearance → Customize → Additional CSS (WordPress 4.7 and up).

#masthead:not(.header-scrolled) {
    background-color: rgba(32,37,41,0.4);
}

Please feel free to ask any other questions that you might have.

Kind Regards, Roman.