Facebook color is blue because of a design thing, right? Well, not really!
There’s a reason the color of the most successful social network is blue and that reason is its very founder, Mark Zuckerberg. The reason why Mark Zuckerberg made Facebook blue is because he’s a red-green color blind. That means he’s unable to distinguish the red and green colors. Blue, on the other hand, is the color that he can see best.
He confirmed this in an interview to reporter Jose Antonio Vargas: “blue is the richest color for me — I can see all of blue.”