Prismacolor Premier Soft Core Colored Pencil - Artichoke PC 1098. Prismacolor Premier Soft Core Colored Pencils have thick cores of color that last long, while soft leads make them the best tool to blend in or shade away. They're vivid and intense in one stroke and subtle and soft in the next, making them perfect for any project, big or small. Smooth coverage and a wide array of colors to choose from make it easy to find a soft spot for these premium pencils. MFG #51507.