Colour definitions

Now I've started to provide coloured templates, the problem of defining colours is something I'm having to tackle. It doesn't help that I don't use a properly calibrated monitor, partly because when calibrated my monitor is far too bright and gives me bad headaches so I like to keep the display fairly darkish. So I'm trying to standardise the colours I use, the basis I'm using for this being the readily accessible Wikipedia pages on colour here: http://en.wikipedia.org/wiki/List_of_colors which give RGB definitions etc.. I make no claim to being 100% correct or entirely purist about this; as we know, 18th century uniform colours are nightmarishly difficult to define anyway. But it does help to have some sort of standard by which to work. Just in case anyone wants to know! :-)