Shades of gray at the top of the axis to black at the bottom of the axis. At right is displayed the web color "Gainsboro" "Gainsboro" is a pale tone of gray. Prior to standardization as a web color, "Gainsboro" was included as one of the X11 color names. It was, however, absent from the original 1987 version of the list, but present in Paul Raveling's version which added, amongst other things, "[l]ight and off-white colors, copied from several Sinclair Paints color samples". At right is displayed the web color "light gray" Displayed at right is the web color "silver" This color is
The Missing Shade of Blue people to recognise that there is a missing shade than it is for them to actually form a clear idea of that missing shade. Be that as it may, this dissolving of the problem fails to meet the second and third criteria listed above. Mental mixing is the solution proposed by Morris. The idea here is that just as paints are mixed to produce the range of colour swatches found in a hardware store, so it should be possible for colours to be mixed in the mind in some kind of analogous way. However, without further argument it is not