Editing World Eaters (section)

===Colours===
The World Eaters Pre-Heresy colour scheme was white and blue, both colors which believe it or not in many cultures ironically stand for calmness (blue) and purity (white), white being cultural and blue being a biological human reaction (since most shades of blue have been scientifically proven to calm and relax the human mind).
Blue and white are also the colours of the Finnish flag, so yeah that's yet another Nordic connection.
If you factor in the biological responses to those colors, though, they would make sense for use by Angron's legionnaires as the sight of them would help stem their RAEG just briefly enough to avoid attacking their battle-brothers ("Friendly Fire" being something the Emperor probably wouldn't have appreciated much).

However in Japan and other Asian cultures white stands for death, and often bloody death, as the white brings out the color red. Also, corpses tend to go pale due to blood loss and/or lack of blood flow to the skin. Meanwhile, blue was the favourite colour of Turkic and Mongolian nomadic empires, as it represented the clear blue sky of the steppe - [[Doombreed]] certainly approves.

While most World Eaters repainted their armour after embracing Khorne (what with the bronze trim), according to fluff, some World Eaters never repainted their armor, the red is simply layers of dry blood. Which doesn't make much sense because dried blood is brown due to the iron in the blood oxidizing, unless they just keep adding new layers of 'paint'. Then again, maybe the blood doesn't oxidize due to Khorne's shenannigans, but that would mean they are dripping blood wherever they go...