Lewis Hamilton's Mercedes team will run an all-black livery and an 'End Racism' message on their cars this season.

The world champions have traditionally raced in silver, but will adopt the look for the delayed campaign which begins in Austria this weekend.

Hamilton will open his title defence at the Red Bull Ring off the back of a row with the sport's former supremo Bernie Ecclestone, who, during a recent TV interview, claimed that "a lot of black people are more racist than white people".

The six-time world champion described Ecclestone's controversial remarks as "sad and disappointing".

Hamilton has been vocal about the Black Lives Matter movement, and said he was overcome with rage following the death of American George Floyd in police custody. He attended an anti-racism march in London earlier this month.

"It's so important that we seize this moment and use it to educate ourselves whether you are an individual, brand or company to make real meaningful changes when it comes to ensuring equality and inclusivity," said Hamilton.

"I have personally experienced racism in my life and seen my family and friends experience racism, and I am speaking from the heart when I appeal for change."

Hamilton and team-mate Valtteri Bottas will also wear black overalls this year. 

Hamilton added: "We want to build a legacy that goes beyond sport, and if we can be the leaders and can start building more diversity within our own business, it will send such a strong message and give others the confidence to begin a dialogue about how they can implement change."

Mercedes have also pledged to improve diversity within their own corridors.

The team revealed that just 3% of their workforce comes from a minority ethnic group, and only 12% of its employees are female.

"Racism and discrimination have no place in our society, our sport or our team," said team principal Wolff.

"This is a core belief at Mercedes. But having the right beliefs and the right mindset isn't enough if we remain silent.

"We wish to use our voice and our global platform to speak up for respect and equality, and the Silver Arrow will race in black for the entire 2020 season to show our commitment to greater diversity within our team and our sport.

"We will not shy away from our weaknesses in this area, nor from the progress we must still make. Our livery is our public pledge to take positive action."

The news season will start in Spielberg on Sunday, with the first of eight scheduled rounds across just 10 weekends.