When I was a child I remember my mother and grandmother being quite strict about colour rules.
You can't wear red and pink together because they clash. I think this applied to orange too (so no orange and red or orange and pink either)
Blue and green must never be seen.
Navy blue and black - no.
No to red and white together because it was too hospital-y. This even applied to a bunch of flowers someone once mistakenly bought my grandmother.
I don't think blue and brown was allowed either.
Do these rules still exist? Did they ever exist or were they a construct of my batty relatives? My mother still gasps when my young daughter wears an orange and pink skirt with red tights and a purple top
.
People wear anything they like these days,