“Up close, you can see that the image is actually black and white. It has coloured lines on top of it. From far away the ...

Op Art, also known as optical art, is a type of art that features optical illusions. The way that lines ... Often these are produced in black and white or highly contrasting colours.

The illusion is reminiscent of the viral debate over the black-and-blue or gold-and-white dress from nearly a decade ago, where the internet failed to reach consensus as to what color the frock ...