Question

Why does JK Rowling spell color with a u (colour) in the Harry Potter books?

Answer 1

Because everyone is different depending where they live. see in America we spell color but in England they spell it colour. They mean the same thing just spelled differently. :)

hoped this helped

Answer 2

Something are spelled with a "U". it's weird in my opinion; however, armor is also armour. It's Britain english.