Resources about color

ICC website http://www.color.org
ICC Profile tags https://sno.phy.queensu.ca/~phil/exiftool/TagNames/ICC_Profile.html
ICC profiles from ECI http://www.eci.org/en/downloads
ICC profiles from Adobe https://supportdownloads.adobe.com/detail.jsp?ftpID=3680
Color space http://brucelindbloom.com/index.html?WorkingSpaceInfo.html#Specifications
Standard of sRGB https://www.w3.org/Graphics/Color/sRGB.html
RGB/XYZ Matrices http://brucelindbloom.com/index.html?Eqn_RGB_XYZ_Matrix.html
Color Calculator http://www.easyrgb.com/en/math.php
http://brucelindbloom.com/index.html?ColorCalculator.html
http://davengrace.com/cgi-bin/cspace.pl
Color data https://www.rit.edu/science/pocs/useful-data
http://www.thefullwiki.org/Standard_illuminant
Color topics https://www.codeproject.com/Articles/1202772/Color-Topics-for-Programmers
https://www.w3.org/TR/css-color-4/#lab-to-rgb
Chromatic Adaptation http://brucelindbloom.com/index.html?Eqn_RGB_XYZ_Matrix.html
Chromaticity Diagram http://demonstrations.wolfram.com/CIEChromaticityDiagram/