A spot color is one that is printed with its own ink. Typically, printers use spot colors in the production of books or other printed material. The spotcolor package by Jens Elstner is a first attempt to introduce the use of spot colors with pdfLaTeX. The xespotcolor package is a reimplementation of this package so to be usable with XeLaTeX or LaTeX+dvipdfmx. As such, it has the same user interface and the same capabilities. Version 2.0a adds support for the xcolor package and so one can use spotcolors in TikZ pictures. Apostolos Syropoulos 2016/03/22