I don't think you can, unless you are writing to SDE. Neither Geodatabase nor Shape store color information.
You could always write the value of the format attribute fme_color to a user attribute in the output. That way you would have a record of it in your data and could maybe use that to color features in ArcGIS?
Regards
Mark
Means that the color information only stored in attribute table in GIS?not apply at feature layer?..ok i'm understand..Actually i have work at standardization department, so if i want to standardize color in term of CAD and GIS layer, i must set it for two times in GIS and CAD?
Yes.
If you wish to standardise the colours between CAD and ArcGIS (Shape and GeoDatabase) layers, you will unfortunately need to set the colours twice.