Board Thread:Editor Board/@comment-6697950-20130531065744/@comment-6021376-20130531122623

If the word by itself is just floor then no. That is stupid. Then you would be infering that it is a proper noun which it is not. If its something like 1st Floor or Aincrad Floor, then yes as it would be a proper noun group.

As for the second I would say British, as I always wince when I have to write "color"