If you think it looks complicated, I’ve got news for you: 盐 is actually a simplified form of another character. Here:
And here’s a small seal script form of this hanzi:
Uncle Hanzi explains its origin as follows:
From salt (a bag of alkaline soil) 卤 / 鹵 substituted with soil 土 and phonetic 监 / 監 [simplified to bowl 皿 / 血 and man looking in bowl 臥 substituted with 卜]. Meaning salt.I hope now everything’s clear.
More photos related to salt @ Shutterstock.