Here's why people saw the dress differently. so we know the dress was black and blue BUT that's not what i'm here to discuss : r opticalillusions Formal Guide: How to Choose an Elegant Black Tie Evening Dress Lulus.com Fashion Blog The dress that divided the internet IS blue and black Daily Mail Online The actual dress was black and blue. The confusion came from how lighting and color perception tricked people's brains, making some see it as white and gold. It became a viral example