Trick

[zipang]

A and B are the same color.

[anon]

Very nice! Without the tip, I wouldn't have realized in a million years.

[SBfreak]

Duuuude.I actually fired up gimp and used the color pick tool.

[bjs]

One of the best visual illusion I have seen for many years!

[anon]

Duuuude.I actually fired up gimp and used the color pick tool.

Same with Photofiltre here. They didn't look like the same color at all.

[Config]

Very Nice illusion

[ParamouR]

RGB - 120/120/120

checked with : ColorZilla for Firefox - Eyedropper, Color Picker and much more

[mammamia11]

even with the tip i dont understand lol, is the amount of grey color is the same in A and B even when its shadowed?

[anon]

is the amount of grey color is the same in A and B even when its shadowed?

Yes, it's the same exact shade even though it doesn't seem like that. Neat illusion.