The First Proserpina Hussars employ a color scheme of blue with heavy green and silver accents.
Per FM:Draconis Combine, page 108.
Goliath, Camo Specs (p.33)
The unit's insignia is a stylized rendition of three blood limpets on a field of green. Native to the swamps of Proserpina, the blood limpet is a quasi-reptile with a hard green shell and six legs. The Hussar's blood limpet insignia covers most of the torsos of the First's BattleMechs. Per FM: Draconis Combine, pages 107 and 108.