"Iridescent" means something that has colors that appear to change or shift as you look at it from different angles or as light hits it. Full definition
1980s YSL octagon shape crystal with iridescent colors with brushed gold tone necklace and earrings set. (1stdibs.com)
Dazzling fuchsia plus flecks of iridescent glitter equals all eyes on you. (redbookmag.com)
Dramatic evening coat in iridescent blue / green taffeta with oversized cocoon styling, featuring a shawl collar, dropped shoulders with shirred short sleeves, and deep yolk. (1stdibs.com)