Camouflage

Camouflage is the art of hiding an individual or object.

Physical Camouflage
Physical camouflage involves using colour to conceal or patterning to break up outlines.

Imperium
The camouflage utilised by the Imperium is a based on physical paint schemes, many of which are 'Codex Approved' schemes which will be utilised by Imperial Guard and Space Marines.

The schemes depend on the environment in which they will be fighting. As some planets have very different ecologies and geologies and enviroments, some of the colours used in these schemes would seem quite garish to modern eyes.

Some Chapters of the Space Marines adopt a no camouflage rule instead adopting an attitude similar to 18th century armies, intending to intimidate their opposition.

Orks
Orks tend not to use camouflage with the exception of the Blood Axes who imitate the Imperium but do not understand the theory of camouflage and instead use combinations of colours and patterns with little relation to the environment in which they will be fighting.

Tau
Tau use patterns of phyical camouflage as well as flat colours to match backgrounds.

Necrons
Necrons are not known to utilise camouflage patterns.

Tyranids
Tyranids are not known to utilise physical camouflage.

Holographic Camouflage
Same races use holographic technology to either completely conceal or disruptive patterns to dazzle or confuse the viewer. Typically Eldar use holographic technology on vehicles and ships with Harlequins utilising personal holographic technology.

Cameleoline cloaks are ultilised by a number of races.

Physiological Camouflage
Some races have specific troop types that are able to physically alter their forms (eg. Callidus temple:Callidus assassins) or their colouration (eg lictors).