Duh. If you stare at where the black and yellow lines meet, you will be able to notice that it's the same shade.

*cough* What yellow?

*cough cough cough* Yes Mr.Noticetheobvious, would you kindly point out the yellow lines in the picture? I think my eyes are failing me.

Come on! Its Orange Mr.IDontNoticeTheObvious.
Per-Lease!! ;D

*cough cough cough cough* yellow, Mr. Noticetheobvious?

um........ur stupid Mr. Noticetheobvious. Are you color blind? Freak.

I think this weird doctor person means "orange".

I don't see anything but one shade of orange.

Cool!

ouch

i see only 1 color of black, orange and green *cough* the point?

yah. that one is simpler than the rest

ALRIGHTY THEN!

There is only ONE color of green and ONE ORANGE and ONE black :p... the illusion is that it looks like the lower green is darker than the upper green...

Yeh, cuz the black lines are in between the bottom greens, but if you look at both the greens together you can tell they're the same, its good though :)

The black lines, make the green below them seem darker, as if a shadow appears.

GAWD people, lay off mr.Inoticetheobvious!Come, on its obvious he means orange!Cool illusion!

well the illusion isnt so cool to pick on people that say yellow instead of orange

the illusion isnt that good to be mean to each other yellow and orange what ever close enough caugh*** caugh**** dont mess with me

Mr.Noticetheobvious if you really noticed the obvious you would notice there is no yellow in this picture, but orange