change blue in all menus to new colour

Hello
I’ve managed to use css editor to (and other advice on this forum) to change the default blue colour in the menu bar/social menu etc to the orange colour that I’m using in my site #dd9933. I’ve used the “additional css” pane in the “customise” window of the theme thus:
.main-navigation {
background-color: #dd9933 !important;
}.jetpack-social-navigation ul li {
background: #dd9933;}

However…
There are still some instances of the blue (which I can see in the css stylesheet) that I can’t seem to change by dropping code into “additional css”. For example: When the menu drops down for a child page the tab is blue, on a mobile when the menu is condensed to a single block it is still blue and also some hover text in the footers. Please advise on how to swap all the blue to the new colour. Many thanks.

The page I need help with: [log in to see the link]