30's fabrics tend to be colorful- with cute prints- with alot of white-
if you simply search 30's vintage fabrics you will find thousands of them....there are a number of shops that (specialize) in vintage fabrics
connecting threads carries a few lines of 30's-
quilt in a day (elenor burns) also has a few patterns& fabrics using them...they are pure colors- sometimes pastel-some times brighter- but clear color- not muted or dark