Colour region
Colour region
Boundary values of x, y chromaticity coordinates of the CIE 2° standard colorimetric observer and luminance factor or luminance for the named colour.
- Document
- ISO
- Context
- International Standard
- Origin document
ISO 3864-4:2011(en) Graphical symbols — Safety colours and safety signs — Part 4: Colorimetric and photometric properties of safety sign materials
- Reference Link
- Release