Ok, I have seen the marvelous colour changing dress on mobile and on my desktop and on multiple people’s blogs, so that rules out colour context. It was the first thing I saw on Tumblr when I peeked at the computer tonight, and I’m still seeing it now I’ve been looking at the screen for a couple of hours, so that rules out eyestrain.
And it’s still very clearly a poorly lit white dress with gold/mustard/yellowy brown trimming.
You lot are bonkers and I strongly suspect that anyone saying it’s blue & black is just trolling.
I could see the white being seen as pale blue due to the lighting, but black? Nope.