0 used to describe a hair colour that is a mixture of brown and dark yellow or silver, or someone whose hair is this colour:
In real life, he is very striking, with dishwater blonde hair, piercing blue eyes, and a pearly white smile.
She's very ordinary, shorter than average, with straight hair, dishwater blonde.
The dishwater blond shade is a dark blonde or very light brown that tends to be cool in tone (silvery) rather than warm (golden).
I stopped dyeing my hair and went back to being a dishwater blonde.