It can be a grounder and combats many of the excess energies of the other colours. It can also represent good abilities in natural areas. They often represent a negative influence in the aura. They can represent materialism, negativity and selfishness. Grey Another colour that usually represents negativity in an aura.
Narrow focus is represented.
It shows conventionalism and shows a lack of imagination. These people can be cold and hard. It can be seen to represent depression. It often accompanies red flecks or black areas. Black Black is simply the absence of colour - it represents negativity and problems.