Which hair color has the highest IQ?

Blonde, Brunette, or Redhead: Does Hair Color Affect Intelligence?

It’s a stereotype as old as Hollywood: the idea that blondes are less intelligent. But what if the opposite might actually be true? A study from 2016 turned heads by suggesting that, contrary to popular myth, blonde women were slightly more likely to fall into the highest IQ categories—and slightly less likely to be in the lowest.

Researchers analyzing data from a long-term study of American women found that natural blondes, on average, scored higher on cognitive tests than their brunette, redheaded, or black-haired counterparts. While the differences were modest, the results were consistent enough to challenge the “dumb blonde” cliché once and for all.

Of course, hair color itself doesn’t make someone smarter. Instead, the findings may reflect broader socioeconomic and educational patterns. The study noted that blonde women in the sample were more likely to come from backgrounds with access to quality education and healthcare—factors that can influence both IQ scores and life outcomes. In other words, it’s not the color of your hair that determines intelligence, but the environment in which you grow up.

Still, it’s satisfying to see outdated stereotypes dismantled with data. Intelligence comes in all shades—literally. Whether you’re a raven-haired intellectual or a golden-haired overachiever, your brainpower has nothing to do with pigment and everything to do with opportunity, effort, and curiosity.

So no, blondes aren’t less intelligent—research suggests they might even have a slight edge. But the real takeaway? Judge people by their ideas, not their highlights.