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The Rainbow Warriors are a Loyalist Space Marine Chapter and a Successor Chapter of the Ultramarines, raised during an unknown Founding. The Chapter's homeworld is called Prism. The Chapter's current status is unknown.

Chapter History

Rainbow Warriors Armor

Rainbow Warriors Chapter colour scheme as displayed by a Firstborn Space Marine.

Notable Campaigns

  • Blood Star Campaign (748.M41) - A massive Daemonic incursion into the Scarus Sector was heralded by the star Ares turning an ominous blood red. The Rainbow Warriors, Relictors, and Fire Lords eventually halted the invasion but took grievous casualties, including the loss of all three Chapter Masters. The Imperium grieved for three of its mightiest heroes.

Chapter Homeworld

The homeworld of the Rainbow Warriors is a planet called Prism. It should be noted that in the Imperium's records of Space Marine Chapter Homeworlds, there is a map displaying the galactic locations of the various Astartes homeworlds. But in the case of the Rainbow Warriors Chapter, instead of displaying its planet with the Chapter's name, it simply says "record deleted" where its homeworld should be. By looking closely, it is clear that the Chapter badge of this deleted Chapter is that of the Rainbow Warriors.

Chapter Appearance

Chapter Colours

Rainbow Warriors Original Colours

Rainbow Warriors original Chapter colour scheme as depicted by a Firstborn Space Marine in Mark VI Corvus Power Armour.

The Rainbow Warriors wear dark blue power armour with a multi-coloured rainbow stripe through the centre of their helms. The Aquila or Imperialis on the chest armour is yellow.

The white squad tactical specialty symbol -- battleline, close support, fire support, Veteran or command -- is indicated on the right shoulder guard.

Chapter Badge

The Rainbow Warriors' Chapter badge is a white winged lightning bolt on a field of dark blue.


A Rainbow Warriors Chapter badge is present in the Command Centre space on the board of Milton Bradley's board game Space Crusade. It is possible the Chapter was named after the Greenpeace ship, Rainbow Warrior, sunk in 1985 by operatives of the French intelligence service.


  • Codex: Space Marines (5th Edition), pg. 30
  • Codex: Space Marines (6th Edition), pp. 64, 67
  • Warhammer 40,000: Rogue Trader (1st Edition), pg. 169
  • Mission: Purge (Audio Drama) by Gav Thorpe