WASHINGTON — She wasn’t exactly helping her boss broker Mideast peace, but somebody’s got to pick out color schemes.

Longtime Hillary Clinton aide Huma Abedin took on some unusual duties while working for the then-secretary of state in 2012 — apparently including arranging an event honoring famed designer Oscar de la Renta at the Clinton library in Little Rock, Ark.

Huma was being paid by US taxpayers, but that didn’t stop her from sending an email from her State Department account about the fete for the old Clinton buddy.

“I have the packet with the floor, pantone [color] options and the floorplan,” Abedin assured a top Clinton library staffer in one missive.

Stephanie Streett, executive director of the library, replied with details about a “temp floor covering that can go over the permanent natural bamboo if they prefer.”

The only thing that got in the way of Abedin’s allegedly taboo moonlighting was her boss’s clunky, controversial, private email server. It was down, leading her to gripe: “My bigger problem right now is I can’t even get into my Clinton email and I wanted to print all the latest documents to go through line by line with oscar,” according to emails obtained through a lawsuit by advocacy group Citizens United.

De la Renta designed both Abedin’s and Chelsea Clinton’s wedding dresses, along with Clinton’s two inaugural gowns — which were displayed at the library retrospective.

An internal State Department probe recently found that Abedin got paid with taxpayer funds for days she was working for the Clinton Foundation and a Clinton-linked lobbying firm or while vacationing in Europe with hubby Anthony Weiner.

The State Department has asked her to repay the money, but Abedin is contesting the findings. Her lawyers say they can prove she did official work during the disputed periods.

Senate Judiciary Chairman Chuck Grassley this week wrote to the State Department demanding more information about Abedin’s “special government employee” status — designated for workers with a unique skill — which allowed her to hold the three jobs simultaneously.