Product Information Lightfast 4 (1-Excellent, 2-Very Good, 3-Good, 4-Fair, V-Poor) Sunburst Yellow PC 917 RGB: 255,128,25 CMYK: 0,50,90,0 Artists' quality colored pencils for every level of expertise. High quality pigments for a rich color saturation. Soft, thick cores create a smooth color laydown for superior blending and shading. Thick leads resist breakage.