On Friday Rav Shteinman paid a visit to a yeshiva to participate in a siyyum made by the yeshiva boys. When he got there and saw some of the tables covered in red tablecloths, he asked why they put a red tablecloth there, as red is a color of goyim.
Obviously they quickly removed the tablecloths, based on what Rav Shteinman said.
source: Ladaat
I guess it makes sense, if red is not a modest color, it would not be used by Jews, and is therefore a color for non-Jews alone. I am just surprised that I never heard such a thing before, and it seems the rosh yeshivas and rebbes in that yeshiva and rabbonim elsewhere, never did either. The opposition to red is generally specifically regarding women's clothing and it specifically references tzniyus issues, not imitating the non-Jews.
Now you know - stay away from red, and not just on women's clothing.
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