showrgb - uncompile an rgb color-name database
showrgb [ database ]
The showrgb program reads an rgb color-name database com- piled for use with the dbm database routines and converts it back to source form, printing the result to standard output. The default database is the one that X was built with, and may be overridden on the command line. Specify the database name without the .pag or .dir suffix.
<XRoot>/lib/X11/rgb default database. X Version 11 Release 6 1