Why Facebook is Blue in Color?

Have Ever you wondered why
is Facebook  blue in color and not changing its
color scheme?

Whenever your login to Facebook you notice the blue colour of Facebook don't matter you are logging in from mobile or PC
Or using Facebook on mobile or on Computer you will notice the blue colour

The reason for this is that Mark , Zuckerberg the
young founder of Facebook is red-green color-
blind and blue is the richest colour for him

In his own words Zuckerberg
says:

Blue is the richest color for me; I
can see all of blue.

So this is the reason that Facebook is in blue colour

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