The Kardashian sisters have come out all guns blazing in their war against the high-end Beverly Hills cosmetics company Chroma Makeup. As was previously reported, the girls - Kim Kardashian and sisters Khloe and Kourtney - want to trademark the phrases 'Kardashian Khroma' and 'Khroma Beauty by Kourtney, Kim and Khloe'.

According to, the co-owner of Chroma Makeup - Michael Rey - is threatening to sue the sisters over the makeup line, claiming it will cheapen his high end brand. We can kind of see the guy's point - Chroma and Khroma sound pretty similar to us. Anyway, sources connected with the Kardashian say they're confident they will win any court battle because Rey hasn't signed any trademarks for his Chroma line. A representative for Kim said, "Boldface licensing + branding has gone through the appropriate legal channels in obtaining the rights to use the name Khroma Beauty by Kourtney, Kim and Khloé in the Color Category with the United States Patent and Trademark Office."

The rep adds that the sisters firmly believe there will be no confusion between Khroma Beauty by Kourtney, Kim and Khloe and Chroma Makeup, adding "We adamantly object to statements about the products quality due to the distribution choice."