ANSI

The American National Standards Institute (ANSI) is a private, non-profit organization (501(c)3) that administers and coordinates the U.S. voluntary standardization and conformity assessment system.

http://www.ansi.org/

Bash Prompt

ANSI Escape Sequences: Colours and Cursor Movement

http://tldp.org/HOWTO/Bash-Prompt-HOWTO/c341.html

Black      0;30     Dark Gray     1;30 Blue       0;34     Light Blue    1;34 Green      0;32     Light Green   1;32 Cyan       0;36     Light Cyan    1;36 Red        0;31     Light Red     1;31 Purple     0;35     Light Purple  1;35 Brown      0;33     Yellow        1;33 Light Gray 0;37     White         1;37