How do I change the colour of the pagination buttons (blue by default)?

Want to change the colour of the pagination buttons which have '1', '2', '3' etc.?

Please go to Admin > Themes > Edit HTML/CSS > customise.css under Assets, and add this at the bottom:

.pagination > .active > a, .pagination > .active > span, .pagination > .active > a:hover, .pagination > .active > span:hover, .pagination > .active > a:focus, .pagination > .active > span:focus {
  background-color: #a4a0a0;
  border-color: #a4a0a0;
  color: #fff;
}

Feel free to change the colours as required, using Hex colours as seen here: http://html-color-codes.info/