There's a CSS color named 'Gainsboro', and a color named 'NavajoWhite' that's not super close to white. 'RebeccaPurple', from a pragmatic sense, is easier to understand than those two in my opinion.
While "gainsboro" as grey is now in the dictionary, used from rugs to Kate Spade pants, Wikipedia suggests it's from X11 colors with no real world usage before that.
