The Faber-Castell Pitt Pastel Blue 151 colored pencil features a dense and versatile blue tone, designed to execute everything from precise outlines to softly blended backgrounds. The soft texture of the wax-free lead deposits pigment evenly, ensuring excellent adhesion and durability against fading. The Blue 151 color blends perfectly with whites and grays. The soft lead should be sharpened with a sharp knife.