The Death Knights primarily wear emerald green Power Armour. The Aquila or Imperialis on the chest plate is silver. The white squad specialty symbol -- Tactical, Assault, Devastator or Veteran -- is indicated on the right shoulder plate. A black Gothic numeral centred on the squad specialty symbol indicates squad number. The shoulder plate trim colour indicates company number in accordance with the Codex -- i.e. White (1st Company), Yellow (2nd Company), Red (3rd Company), Green (4th Company), etc.
The Death Knights' Chapter badge is a large, white skull with a black Maltese Cross centred on its forehead, on a field of emerald green.
- Adeptus Astartes: Successor Chapters (Limited Release Booklet), pg. 33
- Insignium Astartes, pg. 56