Shop Silk, new Sempertex Latex Balloon colors for Summer 2024. Available online now at partyHAUS! Our range of reflex accent colors for our customers just got a lot bigger! Silk New colors include silk cream pearl, light amethyst purple, cool mint green, pink blossom and arctic blue. Pretty shimmery pastels on their own or add to balloon clusters, arches and garlands to add some silky elegance to your designs.