Yes some colours well not work but the ones that should work (colour names) are:
Blue :
text
Red :
text
Yellow :
text
Silver :
text
there are more then this though, but not a lot more (maybe 10)
there are over 16 million different colors available. You should be able to use both Hex colour code (ie. 000000 or FFFFFF and rgb(0,0,0) or rgb(255,255,255) )
Some are very hard to read, so chose colour's carefully