The transformation of all the property’s 800 rooms began in April, with each room receiving a total makeover, including all furnishings, carpet, wall covering, bathrooms, tubs, fixtures, drapery and artwork. Architect and designer Ann Matsunami of Pacific Asia Design Group was said to have used the colors of Hawaii as the basis of developing themes for the new rooms.
The corridors on all guest-room floors, three through 31, have been upgraded with new light fixtures, wall coverings, carpet and artwork. Elevators lobbies also received new elevator door faces and frames, new flooring, lighting and wall treatment.
The tower's signature suites, the Duke Kahanamoku Suite and the Niumalu Suite on the 30th and 31st floors, respectively, underwent upgrades costing $1 million. The Duke and Niumalu Presidential Suites now feature interiors with touches of Hawaiian influence. The suites now also have living areas and adjacent dining areas and pantries with separate sitting areas.
The Rainbow Tower opened in 1968. It features the world's largest ceramic-tile mosaic spanning 286 feet high by 26 feet wide on each end of the tower. More than 16,000 tiles were used to complete the mosaic.