السلام عليكم و رحمته الله و بركاته

is there a certain way of wearing the Hijab? i see many different ways people wear the Hijab and yet i don't know why they don't all wear it in one way...also, should the Hijab be a solid color or is it ok to wear multi colored Hijabs-though a couple of days ago i heard someone saying that the colored Hijabs bring attention to one's self...Insha'Allah i get feedback on my questions with anything else relating to the Hijab...