HP BrightWhite24 HP BrightWhite24 Paper is a 24 lb, super smooth paper that is extra bright (100 bright) and whiter (165 whiteness) than ordinary paper. HP BrightWhite24 empowers inkjet printers to produce their boldest, richest colors. Engineered with ColorLok Technology BrightWhite24 paper provides brighter colors and bolder blacks for great-looking reports, school work and professional business documents. HP BrightWhite24 is available in 8.5 x 11 letter size paper optimized for full-color printing in all inkjet printers and copiers.