[OS X TeX] xcolor warning

[Salvatore Enrico Indiogine]

Package xcolor Warning: Incompatible color definition on input line 55

The cls and tex files load the package "color" not "xcolor"

The cls has this line:

\RequirePackage{color,hyperref,graphicx}
\definecolor{linkcolour}{rgb}{0,0.2,0.6}
\hypersetup{colorlinks,breaklinks,
            linkcolor=linkcolour,citecolor=linkcolour,
            filecolor=linkcolour, urlcolor=linkcolour}


Any idea?

Thanks,
Enrico

-- 
Enrico Indiogine

Mathematics Education
Texas A&M University
Email: hindiogine at gmail.com
Skype: hindiogine