[tex] \huge \boxed{\mathfrak{Answer} \downarrow}[/tex]
It has been researched & found out that [tex]\boxed{\sf \: green}[/tex] is the rarest eye colour in the world. Only about 2% of the whole global population has them. Apart from green, -> grey, hazel & golden - brown are also not much common. The most common eye colour is => brown.
