If this "viral dress debate" has taught me anything is that you can claim whatever bullshit online and bunch of people will believe it. Post an orange and claim it's blue even though it's clearly orange and there will be a percentage of idiots who will believe that the orange is blue because someone said so. And we'll have virale debate about a fucking orange.
Of course there are vision conditions like daltonism and we have variances in perceptions of color gradients, but white and gold doesn't suddenly become blue and black...