I wish I had blonde hair. I really like that color.
yes we all wish don't we haha, fair hair or blond is actually  a hair color characterized by low levels of the dark pigment eumelanin.
Eumelanin, what exactly is that? I have dark hair, it must mean I have a lot of it!
always has some sort of yellowish color.
I see, and wha about red hair?
I'm not sure about red hair but i'm sure its almost same low level of pigmentation that causes it. Anyways, The color can be from the very pale blond
Is red not one of the primary colors? It reminds me of a vampire. 
oh ok. On  a special scale  scale, the hair color ranges from A  to O