RAL Design System plus - the logical color system.
RAL Design System plus is the RAL color system in which the colors are arranged according to the international in the color measuring technique used mathematical color space. The arrangement of the colors is structured according to the criteria of hue, lightness and chromaticity. The results of the color criteria give a seven-digit color number, for example RAL 260 30 35. The RAL design color system from 1993 was overworked in 2018. 200 new mainly light colors were added as well as color names for each color for a total of 1825. The color system is now called RAL DESIGN SYSTEM plus.