libgraphics-colornames-perl software package provides defines RGB values for common color names, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libgraphics-colornames-perl
libgraphics-colornames-perl is installed in your system.
Make ensure the libgraphics-colornames-perl package were installed using the commands given below,
$ sudo dpkg-query -l | grep libgraphics-colornames-perl *
You will get with libgraphics-colornames-perl package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Perl |
| Package | libgraphics-colornames-perl |
| Version | 2.11-4 |
| Description | defines RGB values for common color names |
| Sub Section | Perl |