We suppose this is better than naming your baby Roy G. Biv.

Holly Madison and boyfriend Pasquale Rotella have revealed that they named their newborn daughter Rainbow Aurora Rotella, according to E! Online.

“I wanted to give my daughter a unique name,” Holly explains. 

“Growing up, there was a girl in my school named Rainbow, and I was so envious of that name," the Girls Next Door star continues. "I thought it was so pretty and unique!”  

Holly and Pasquale gave birth to Rainbow on March 5.

"I've never been more in love than I am today as, after months of waiting, I finally was able to hold my daughter for the first time," Pasquale said when the bundle of joy arrived.

"I'm truly the luckiest man in the world," he continued. Aww  so sweet!

Welcome to the world, little Rainbow! 

Source: E! Online