https://htmlcolorcodes.com/color-picker/
https://www.w3schools.com/colors/colors_hexadecimal.asp
https://sourceforge.net/directory/os:windows/?q=hex+color
https://www.softpedia.com/get/Multimedia/Graphic/Graphic-Others/HEX-RGB-color-codes.shtml
https://www.umsiko.co.za/links/RGB-ColourNamesHex.pdf
http://www.workwithcolor.com/color-chart-full-01.htm
https://weschool.files.wordpress.com/2016/03/rgb-colournameshex.pdf