I'm wearing the - in the wardrobe the color is much more cream colored and less lavender/purple - but on the hover over my UN and forums, it's less cream and definitely more purple. Here's a screenshot to show what seems to be happening - and both are from the same browser.
Using Chrome with mac os Sierra, for reference.
Edit: this item is the only one that I've found that seems to have this issue.

it's weird because for me, the dress looks like the first image, in your wardrobe, but none of the other items are the right color. The shrug, your skin, your shoes, and your hair, everything is off-color in your screenshot compared to what I usually see. Do you have any custom css or addons on your computer?
- I don't have anything installed, I do have my color calibrated though for personal preference - but that should be the same across the board. For me, everything on my HA looks the same between the two except the dress. When I hover over the dress too, it just shows the cream color, not like the actual item image. Do they look different to you, too?
I can see the difference! What's strange to me is that your screenshot and what I see on the forums look identical, on my end - but your version of my screenshot doesn't look like mine, at all. I'm going to mess with my calibrations, but would you mind taking a screen for me of the item + hover image? They don't match on my end.
You're not the only one, I just realized that I'm having the same issue.
This one is giving me the same problem, it's coming up more yellow on my end when I wear it then when it looks in my saved wardrobe outfits.
Nope, Windows 10 PC. I'm not sure I can say it's because of the colour settings on my monitor, since I have two of them, with two different sets of settings.

That's what I've got on my end.