A referendum on Amendment 1 to the Constitution of Hawaii was held on November 5, 2024. The amendment repealed the Hawaii State Legislature's ability to limit marriage to heterosexual couples,[2] reversing the 1998 Hawaii Marriage Amendment.[3] The measure passed with 51.3% of the vote in support and 40.4% in opposition.[1] The wording of the ballot language proved confusing to a number of voters, who were unsure of what the amendment accomplished.[4] The amendment passed simultaneously with similar referendums in California and Colorado.[5][6]