Brown blotch on head

[Chameleoon]

Hi guys, I'm a brand new cham owner so I'm probably just being paranoid. But, I got a male veiled chameleon about a week ago and I'm noticing some brown coloring on the top of his head. I don't know if this is normal or a sign of sickness. Can anyone help? Here's a pic of him:

 

[Lazereth]

From what I can see with my non professional opinion it looks like nothing. I've heard that chameleon can change color, I read that some where but don't quote me on it. Jk
Does it stay that color?

 

[alphakenc]

No worries,that is his normal skin cell pigments,he cant be green all the time like the HULK.

 

[Chameleoon]

Whew I was getting super worried. Thanks!