Technical drawings of architectural or engineering designs always seem to consist of white images and text on blue paper. Why? It’s because of how those documents are made. The blueprinting ...

Sign In. Adam Rogers. Science. Feb 26, 2015 10:28 PM. The Science of Why No One Agrees on the Color of This Dress. ... "Most people will see the blue on the white background as blue," Conway says.

In February 2015, the viral illusion had viewers in a hot debate over whether the dress was black and blue or white and gold. Here's the science.

Some people see a white and gold dress in dark shadow. Some people see a blue and black dress washed out in bright light. Some people see one interpretation and then switch to the other.