When Boettcher saw three side-by-side images of the dress, he said he couldn’t see gold in any of the images, but he clearly saw blue and black in the last image:

Pink is a common answer among the colorblind community, according to Kathryn Albany-Ward, founder of \"Colour Blind Awareness\" in the U.K.

I see pink and brown #TheDress #colorblind

— Scott Demler (@Demler29) February 27, 2015

And variations of gray are also popular responses, Albany-Ward said.

Looks gray to me. #colorblind #TheDress

— Sean T at RCP (@SeanTrende) February 27, 2015

\"Many said 'pink and brown' or 'pink and a dark color,'\" Albany-Ward said. \"They are not actually seeing pink, but they think they are. Many people see dark pink when we see blue. But they're not sure if they're seeing blue or pink. They think it should be pink, or they expect us to think it's pink.\"

Catching up on this dress thing. I see purple and green... So there's that. #colorblind

— Brandon Weir (@Brandon_Weir) February 27, 2015

It turns out colorblindness is more common among men. About one in 12 men are colorblind, while men are 20 times more likely to be colorblind than a woman, according to Colour Blind Awareness.

The dress is gray and dark gray #colorblind

— Tyler Palmquist (@ty_guy96) February 27, 2015

Albany-Ward said she's been surprised by the reaction from the \"color-normal\" community.

\"That's what struck me most about this whole thing taking off. 'Color-normal' people don't realize the feeling they're getting of not being able to see the same color as other people and they're unsure of themselves. Colorblind people know they're at a disadvantage the whole time. People who have normal color vision do not like it when they don't see it as anyone else.\"

I've never been more thankful to be #colorblind than I am seeing everyone wrangle over the color of a dress. Welcome to my world, you guys!

— John Lyda (@johnlyda) February 27, 2015

The number of colorblind people in the world is about the size of the U.S. population, which is about 320 million, estimates Albany-Ward's group.

I love that everyone is freaking out about seeing different colors & trying to explain why. Welcome to my world! #colorblind #TheDress

— Rich Dool (@RichDool) February 27, 2015

Albany-Ward said she started the organization originally to promote colorblind awareness in schools so children can receive appropriate support. Now her organization works with businesses to be \"colorblind compliant\" for their customers.

I'm so glad the rest of the world gets to spend a day being super confused about colors. This is my life, every day. #colorblind

— Scott Huntington (@SMHuntington) February 27, 2015
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