The SQUARES are the same.Bogie - do you mean the letter A and the letter B are the same shade/color or the squares are the same shade/color.
If you mean the squares - I'm more wasted than I think.
Don't believe me? Load the image in windows "paint", or your preferred graphics tool. Cut out a chuck of either square and slide it over next to the other square.
In some image tools you can actually get the metrics on the shade. They are both the same.
You're not wasted. It's all about how humans process the information.