Customise Sela theme color

style.css

/* Customise Sela theme color */

/* Nav background */
.main-navigation {
background-color: #0b778a;
}

/* Nav rollovers */
.main-navigation li a:hover {
color: #b0dbe2;
}

.main-navigation li.current_page_item > a, .main-navigation li.current-menu-item > a, .main-navigation li.current_page_ancestor > a, .main-navigation li.current-menu-ancestor > a {
    color: #b0dbe2;
}

/* Nav item separators */
.main-navigation .nav-menu > li > a:after, .main-navigation .menu > li > a:after {
    color: #b0dbe2;
}

/* Site wide links */
a {
    color: #0b778a;
    font-weight: bold;
}

/* Footer links */
.site-info a {
    color: #fff;
}

.site-info a:hover {
    color: #0b778a;
}

/* Form submit button */
button, input[type="button"], input[type="reset"], input[type="submit"], #infinite-handle span {
    background-color: #0b778a;
}

This changes Sela theme color to a lovely shade of teal. Obviously you can replace the color codes with your own choice of color.

Add this CSS in the form of a child theme, or use Simple Custom CSS plugin. Too easy!