MediaWiki:Primary Infobox Theme.css

.portable-infobox.pi-theme-primary {
    border-radius: 15px 15px 15px 15px;
    background-color: #34424F;
    color: #FFFFFF;
}
 
.portable-infobox.pi-theme-primary .pi-secondary-background {
   background-color: #34424F;
   color: #FFFFFF;
   border-radius: 15px 15px 15px 15px;
}
 
.portable-infobox.pi-theme-primary .pi-border-color {
   border-color: #FFFFFF;
}
 
.portable-infobox.pi-theme-primary .pi-title {
   background-color: #34424F;
   border-top-left-radius: 15px;
   border-top-right-radius: 15px;
   color: #FFFFFF;
}
 
.pi-europa .pi-smart-data-label:nth-child(2n), .pi-europa .pi-smart-data-value:nth-child(2n) {
    background-color: #946EA4;
    color: #FFFFFF;
}
 
.portable-infobox.pi-theme-primary .pi-image-collection-tabs {
  background-color: #946EA4;
  color: #FFFFFF;
}