Cxf
From ColorWiki
CxF
A standard file format for color exchange
People in the business of exchanging color information need a reliably method to describe color data in a format for transmission between two parties. The file format will exhibit these features:
The CxF format accommodates a wider range of color data in a more-easily-used way, that takes adavantage of the strengths and universal acceptance of XML (Extensible Markup Language).