Even though Kim may be the shining star of the family, she was adamant that all of her sisters and her mother get the same amount for the OPI deal the group inked back in March of this year. According to the contract, the family was guaranteed $600,000 up front, plus a cut of the nail polish profits. Get the details below, plus the super cute names of Kourt, Kim and Khloe’s individual corporation names!

Marisa Mendez

TMZ has learned … all 6 K-ladies (Kris, Kim, Kourtney, Khloe, Kylie and Kendall) inked a deal with OPI back in March to become spokeswomen for a Kardashian line of nail polish … featuring colors like:

Sealed with a Kris — an intense dark red tone
Kim-pletely In Love – a soft, delicate pale pink hue
Khloe Had a Little Lam-Lam – an eye-catching dark emerald hue
Listen to Your Momager! – a striking deep blue tone

According to the contract, obtained by TMZ, the family was guaranteed $600,000 up front — plus a cut of the nail polish profits.

Here’s the thing … the documents show the money is being divided EQUALLY between all of the women — that’s $100k-per-gal for all you math wizards out there.

Shocking considering Kim is in her own stratosphere when it comes to star-power … then again, they say charity starts in the home.

Fun Fact — each lady has requested to be paid through their very own corporations … which have names like Kimsaprincess Inc., 2Die4Kourt Inc. and KhloMoney Inc.