Avatar's Background Help

Can somebody tell me if my avatars blend in correctly with my profile background.

At home it does, but when i'm at school the avatar is a much lighter black than the profile background colour...

thanks

NOTE: i've also posted this in the Member Art section but the Chit Chat forum has more people so i've more chance of getting a reply

The walls in the avatar are grey if that's what you are talking about.

what about now????

i meant the black i used in the avatar was grey when i viewed it at school (and yes i tried different monitors at school)

thanks for any help