there is a universal code for every color. these codes are used to match colors on the web and its often referred to as a color picker. i learnt about the color codes back in 2006 when i was managing a real estate website which no longer exists (www.1390fortune.com)
the picture shows what this color picker usually looks like.
on the blank box next to the number sign reads a number as the pointer is moved inside the larger box to its left. Every shade is coded.
my favorite color is c000c0 the phunkiiest purple.