Several industry standard color names made available as CSS custom properties (vulgo: variables).
- RAL paint and pigment colors, German industry standard since 1927 in 3 variants
- RAL Classic, extended from 40 (1927) to 216 base colors with standardized names in several European languages
- RAL Design System (1993), CIE-Lab-based, but slightly altered subsequently
- RAL Effect (2007), 420 plain and 70 metallic hues
- RAL Plastics (2010) equivalents for Classic and Design
- HKS offset printing and ink colors, German industry standard since 1968 with 88 named base colors for 4 types of paper (
Nnormal,Kphoto/art,Znewspaper,Econtinuous stationery) in CMYK - ISO 28178:2013 C5 SWOP colors, 1617 measured samples in CMYK
- Printer Working Group (PWG) Media Standardized Names (MSN) Media Color Names, established for networked printing protocols like IPP, 20 base colors, most of them in 4 variants