You selected the brightest highlights on the dress. I selected more average colors here.
I also included WHITE AND GOLD next to the selected colors, so you can see what they actually look like. Are you really saying that blue is white and brown-grey is gold?
You can sample the colours and see it’s white with a very light blue tinge and gold.
People who see it as blue and black are (correctly in this case) auto-correcting for the yellow light as the dress itself is black and blue.
Whereas people who see it as white and gold are (subconsciously) assuming a blue shadow and seeing the pixels as they’re displayed.
You selected the brightest highlights on the dress. I selected more average colors here. I also included WHITE AND GOLD next to the selected colors, so you can see what they actually look like. Are you really saying that blue is white and brown-grey is gold?