Hi sauramon
You can override the color for these text by using this custom css:
#s5_header_area1 .jdGallery .slideInfoZone p,#s5_header_area1 .jdGallery .slideInfoZone h2 {
color: #ffffff !important;
}
#s5_overlay_menu_open span.s5_menu_overlay_text {
color: #ffffff;
}
#nav-toggle span, #nav-toggle span:before, #nav-toggle span:after {
background: #ffffff !important;
}
and change to your desired color.