While a rose by any other name might well smell as sweet, turns out that merely wearing the color red or being bordered by the rosy hue makes a man more attractive and sexually desirable to women, according to a series of studies by researchers at the University of Rochester and other institutions.

Better yet (from the guy’s perspective, anyway) – women are apparently unaware of this arousing effect – which, sorry ladies, apparently only works one way.

Red’s influence ultimately lies in its ability to make men appear more powerful, says lead author Andrew Elliot, professor of psychology at the University of Rochester. “We found that women view men in red as higher in status, more likely to make money and more likely to climb the social ladder. And it’s this high-status judgment that leads to the attraction,” Elliot said in a press release about the study.

The Study

To quantify the red effect, the paper analyzed responses from 288 female and 25 male undergraduates to photographs of men in seven different experiments. Participants were all self-identified as heterosexual or bisexual. In one color presentation, participants looked at a man’s photo framed by a border of either red or white and answered a series of questions, such as: “How attractive do you think this person is?”

Other experiments contrasted red with gray, green, or blue. Colors were precisely equated in lightness and intensity so that test results could not be attributed to differences other than hue, according to the report.

In several experiments, the shirt of the man in the photographs was digitally colored either red or another color. Participants rated the pictured man’s status and attractiveness, and reported on their willingness to date, kiss, and engage in other sexual activity with the person. They also rated the man’s general likability, kindess, and extraversion.

Interestingly enough, the researchers found that the red effect was limited to status and romance: red made the man seem more powerful, attractive, and sexually desirable, but did not make the man seem more likable, kind, or sociable – and this effect was found to be consistent across cultures: undergraduates in the United States, England, Germany, and China all found men more attractive when wearing or bordered by red. 

That said, the effect was limited to women. When males were asked to rate the attractiveness of a pictured male, color made no difference in their responses.  In earlier work, Elliot documented that men are more attracted to women in red. But the red effect depends on the context, according to the research . Elliot and others have also shown that seeing red in competitive situations, such as IQ tests or sporting events, leads to worse performance.

The paper was coauthored by Daniela Niesta Kayer, University of Rochester; Tobias Greitemeyer, University of Innsbruck; Stephanie Lichtenfeld, University of Munich; Richard H. Gramzow, University of Southampton; Markus A. Maier, University of Munich; and Huijun Liu, Tainjin Medical University.

Why Red?

But why would red send that signal rank? The study’s authors see both culture and biology at work, noting that in human societies across the globe, red traditionally has been part of the regalia of the rich and powerful. Ancient China, Japan and sub-Saharan Africa all used the vibrant tint to convey prosperity and elevated status, and Ancient Rome's most powerful citizens were literally called "the ones who wear red." Even today, the authors note, businessmen wear a red tie to indicate confidence, and celebrities and dignitaries are feted by "rolling out the red carpet."

Beyond these “learned” associations, the authors point to the biological roots of human behavior. In non-human primates, like mandrills and gelada baboons, red is an indicator of male dominance and is expressed most intensely in alpha males. Females of these species mate more often with alpha males, who in turn provide protection and resources, according to the report.

"When women see red it triggers something deep and probably biologically engrained," explains Elliot. "We say in our culture that men act like animals in the sexual realm. It looks like women may be acting like animals as well in the same sort of way."

The research was funded by the Alexander von Humboldt Foundation and an Excellence Guest Professorship at the University of Munich.

The study was published in the August 2 issue of the Journal of Experimental Psychology: General.