According to a picture tweeted by Huffington Post editor Bianca Bosker, Facebook sells a shade of nail polish at its Menlo Park, California, headquarters called Social Butterfly Blue, for $4.95 a bottle.

While Facebook’s logo isn’t featured on the packaging, the distinctive blue is recognizable to anyone familiar with the social network’s home page.

Facebook sells a shade of nail polish at its Menlo Park, California, headquarters called Social Butterfly Blue, for $4.95 a bottle

According to an article published in the New Yorker in April, Mark Zuckerberg chose that particular color for his website because he is red-green colorblind.

Mark Zuckerberg, 29, explained: “Blue is the richest color for me – I can see all of blue.”

Another possible reason behind the iconic hue is that blue has been proven to trigger certain emotions when it comes to marketing.

The nail polish bottles, which can only be purchased at the Facebook campus, are adorned with tiny butterflies.