Yes. I went to private school my whole life so elementary, middle and high school. Elementary school was green, Middle school was red and grey. High school we had 3 different skirt/pants colors(blue, khaki, grey) and two blouse colors(white,blue). Which was kind of nice since I didn't have a lot of clothes and it was annoying to figure out what to wear daily.. We had a few free dress days to wear anything.
My highschool started making us wear lanyards (I.D.) around our necks on my senior year though, and you got detention without them, Ughhhh
We had a dress code but since i was a dancer, i got to wear whatever. So while the other students were wearing dress shirts and polos, i was wearing tank tops and leggings