abstract trendy holographic banner background in pastel colors. soft focus, blur create futuristic ethereal . liquid

holographic pastel banner background rainbow texture futuristic 80s 90s abstract blur colorful gradient iridescent liquid metallic motion retro stylish violet pink mint purple blue chrome disco bright surreal promotion advertising website groovy 60s 70s hallucinogen yellow soft focus trendy ethereal candy colors foil hologram fashion design modern art graphics wallpaper poster cover