Ofcom announced this week that it was considering banning the judge from showing off a tattoo on her forearm saying 'The Female Boss', as it is also the name of her recently released fragrance.
Several viewers have apparently complained to the regulator that the action breaks rules governing the promotion and referencing of commercial products by on-screen talent.
However, Contostavlos denied that her tattoo is a reference to the new fragrance and debunked suggestions that her gesture could persuade people to buy the product.
"I was showing off my tattoo long before The X Factor," she told The Mirror. "It's always been my trademark and it's always been my nickname.
"The perfume's not actually called The Female Boss - it's just TFB. So someone wouldn't go into a shop and buy my perfume just because they'd seen my tattoo. The show told me it's OK, I can carry on doing it - and I will."
Contostavlos also hit back at suggestions that the furore over her tattoo could cost her a place on The X Factor next year.
"I definitely want to come back next series," she said. "But would I do it for a pay cut? Definitely not. That's ridiculous."
The X Factor continues tonight (November 26) at 8pm on ITV1.
> 'X Factor' Tulisa Contostavlos: 'Death threats are nothing to me'