How to determine the complexity of the mob?

[Momentik]

Hello. I noticed that near the mobs is an indicator of complexity. How to determine the complexity of the enemy on the roundels near his quality of life? What color goes for what?

[Linkincena]

Blue is for Toughest..
Yellow is for medium
And red is for noobs..

[User111]

Red for tough
Blue for medium
yellow and green for easy.

Hope that helps

[Keshav Agarwal]

It is actually the level of the mobs in relation to you. + being higher, and - being below your level. (I think there's one more shade before the bottom grey, but need to look up which it is. In any case, this is very close to accurate)

Red: +4 or more levels
Orange: + 3 levels
Yellow: + 2 levels
Navy: + 1 level
Blue - same level as you
Dark Green: -1 level
Green: -2 levels
Grey: -3 or more levels (no exp)
....

[Serancha]

http://www.spacetimestudios.com/showthread.php?149458-What-is-it-for

[Azemen]

Missing a light purple/lavender color.