was it explained scientifically?
Yes, The differences in opinions are a result of how the human brain perceives colour, and chromatic adaptation.
The dress
Neuroscientists Bevil Conway and Jay Neitz believe that the differences in opinions are a result of how the human brain perceives colour, and chromatic adaptation. Conway believes that it has a connection to how the brain processes the various hues of a daylight sky: "Your visual system is looking at this thing, and you're trying to discount the chromatic bias of the daylight axis... people either discount the blue side, in which case they end up seeing white and gold, or discount the gold side, in which case they end up with blue and black." Neitz said:

Our visual system is supposed to throw away information about the illuminant and extract information about the actual reflectance... but I've studied individual differences in colour vision for 30 years, and this is one of the biggest individual differences I've ever seen.
where did the blue and black dress come from The photo originated from a washed-out colour photograph of a dress posted on the social networking service Facebook. what was its actual colour? It was eventually confirmed as black and blue.
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The dress [SEP] Scientific explanations
There is currently no consensus on why the dress elicits such discordant colour perceptions among viewers, though these have been confirmed and characterized in controlled experiments (described below). No synthetic stimuli have been constructed that are able to replicate the effect as clearly as the original image. Neuroscientists Bevil Conway and Jay Neitz believe that the differences in opinions are a result of how the human brain perceives colour, and chromatic adaptation. Conway believes that it has a connection to how the brain processes the various hues of a daylight sky: "Your visual system is looking at this thing, and you're trying to discount the chromatic bias of the daylight axis...