Members of the LGBT community may now marry in Hawaii after the state's legislative chambers approved a gay marriage bill on Tuesday.

Participants hold a giant rainbow flag during the annual gay pride parade in Hong Kong November 9, 2013. Participants from lesbian, gay, bisexual and transgender communities took to the street on Saturday to demonstrate for their rights. REUTERS/Tyrone Siu

Passing the Senate by 19 to 4, the bill is now en route for the signature of Democrat Gov Neil Abercrombie. The governor had long indicated he will sign and enact the legislation into law.

The recent hurdle makes Hawaii the 15th U.S. state to legalise marriage for gay and lesbian couples.

The bill is expected to take effect on Dec 2 in Hawaii, a popular location for destination weddings.

Researchers from the University of Hawaii said the new law could boost tourism by an estimated $217 million over the next three years.

This recent victory of the LGBT community follows last week's passage of a same-sex marriage bill by Illinois lawmakers on Nov 5. To be signed by Gov Pat Quinn at a public ceremony on Nov 20, Illinois' gay marriage law will take effect on July 1, 2014.

Hawaii's gay marriage bill, only a few hours old, has faced protests.

Republican state Rep Bob McDermott was reported to have sent a letter to Mr Abercrombie that he will seek a temporary restraining order against the bill should it pass the legislative chambers.

On Tuesday, the Honolulu Star Advertiser reported a state judge has welcomed hearing the case if the bill passed.

U.S. President Barack Obamas was reported to have lauded the approval.

"Whenever freedom and equality are affirmed, our country becomes stronger. By giving loving gay and lesbian couples the right to marry if they choose, Hawaii exemplifies the values we hold dear as a nation. I've always been proud to have been born in Hawaii, and today's vote makes me even prouder."