Koleseton Perfect -Touch of Cool Shades. Four new Shades - Introducing, hints of Rose and Violet, Pearl and Ash for seamlessly beautiful hair color results. Touches of inspiration are everywhere around us in fashion, design, art and nature, but also in the most unexpected places. The NEW Cool Collection by Wella Professionals reflects this mood. Launching four new cool hair color shades in pearl, ash, violet and cendre., Wella Professionals has drawn inspiration from different distinctly cool color spaces. Each with its own spectrum of references from the world around us - the ash of a burnt-out fire, the great woolens on the catwalks, the silver of cold metal furnishings, the violet haze of a frozen lake. When you try on a shade, you try on a whole space.