HKS is a trademark association founded by Hostmann-Steinberg printing colors, Kast+Ehinger printing colors and Schmincke & co. The producers once used 88 individual spot colors for the offset printing.
The colors can be found in the classical color fan of HKS. There are four different ones. They differ according to the paper quality and the printing process.
- HKS K – art printing paper (coated paper, glossy or matt coated)
- HKS N – natural paper, offset printing and book print (uncoated paper, e.g. for letter heads)