Assign the libref and set the graphics environment. CTEXT= specifies the color for all text on the output. COLORS= specifies the colors list, which is used by the default patterns and outlines. 
libname reflib 'SAS-data-library';
goptions reset=global gunit=pct border cback=white
         colors=(blue green red) ctext=black
         ftitle=swissb ftext=swiss htitle=6 htext=4;