Which is why I tried asking other people who saw black and blue what black and blue they are seeing. The image on the right shows a deep black and navy blue, something I just do not see reflected in the left image.

The Salvation Army in South Africa did an advertisement (to raise awareness against violence against women) showing a yellow and gold dress and it's closer to what is shown in the image than what is shown in the original. Presumably, they wouldn't see that dress as black and blue.