Red Black hair Biology?

Hi people, i were thinking and came by something after i read this:

"Reddish hair: the hair root dominates pheomelanin, eumelanin hard to find

Blonde Hair: pheomelanin much mixed with small amount of eumelanin

Brown Hair: little mixed with much eumelanin pheomelanin

Black Hair: little pheomelanin, but very much eumelanin"

- What do you think ? what are the main hair colors ?

You would say "blond" and "red" and "black", but i see just Black and Red as the main hair-colors !

not like they say by the .... its means when God created the world, he did created just red haired people and black haired people, and when black and red did mixed, there it came - "blond" and "brown" ! so because black-haired people got just Eumelian ! and red haired people got just Pheomelanin and the other both, just the blond less Eumelian and more Pheomelanin and by brown haired people the opposite !

So what they tell in the school about "neadertales or...., the begin of humanity were most just blond with some red haired" aint true ! just if after they gone mixed !

What, its true or ?