Convert RGB to ColorName String Javascript

Question

I want to find out if a DOM Element has a style which is for example a color:Red. If this is defined on the inline style just like

Answer 1

A color name to RGB converter look up table will help, start here: http://web.njit.edu/~walsh/rgb.html.
On the other hand someone might have build it before, so try to google it: https://encrypted.google.com/search?num=100&q=SlateGray1+SlateGray2+inurl%3A.js