13.09.18
 
I am currently working with the atlas of NCS (Natural Color System). This very complete color chart is based on the perception of colors and not on color mixing. One of its advantages compared to the Pantone system for example, lies in the fact that it is possible to represent the color only by its code. Mainly used for architecture, this classification system makes it possible to precisely define a hue and then use it as a reference for the various media used.
 
For more informations : Natural Color System