The US Supreme Court has ruled that the constitutional right to free speech allows a web designer in Colorado to refuse to make wedding websites for same-sex couples.

The court's six majority conservative justices on Friday ruled in favor of the designer, who cited her Christian faith in seeking an exemption from a Colorado law that prohibits discrimination based on sexual orientation and other factors.

The top court said forcing her to create the websites would violate her free speech rights, and these rights supersede the Colorado anti-discrimination law.

The court's decision has raised concerns, especially among liberals, as they fear it could lead to other discrimination against LGBTQ people.

The Supreme Court has recently become more conservative in its rulings, as conservatives have a six-to-three majority on the bench.

The court ruled Thursday that considering race a factor in college admissions is unconstitutional.

US President Joe Biden released a statement following Friday's ruling. He said he is "deeply concerned that the decision could invite more discrimination against LGBTQI+ Americans."

He also said the ruling "weakens long-standing laws that protect all Americans against discrimination in public accommodations -- including people of color, people with disabilities, people of faith, and women."

He urged Congress to swiftly pass legislation that will enshrine "civil rights protections for LGBTQI+ Americans in federal law."