Chardy
Sorry, M0nica if it seemed, I was correcting you. You'd instigated a thought in my head, and I was interested in finding out the answer. I love old b/w films, and pale pink could look like cream or any pale pastel really on the screen.
My interpretation, when they said 30s evening dress, was slinky, glossy satin in cream or midnight blue.
Same here Chardy, I just had a picture in my head of thirties tea dresses being in pastel colours, no idea where it came from. I’ve looked it up since, and it really was such an elegant era, I can quite see why they chose dresses from then. I almost wish we still dressed like that!