Indigenous broadcaster Stan Grant has warned against shutting out extreme views from national debate after the election of what looks certain to be a polarised parliament.

As of Wednesday, One Nation's Pauline Hanson – who actively opposes constitutional recognition of Indigenous Australians – has secured at least one Senate seat.

But Grant, who has been appointed to the Referendum Council on recognition, said he did not believe such voices should be silenced.

"It's not about shutting anyone down, it's not about being afraid of that. If we're going to successfully prosecute a case for a referendum then you need to look at the political reality and you need to be able to build a case that is persuasive and inclusive."