HSV: (?°, 0%, 86%)
RGB: rgb(220, 220, 220)
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, "light and off-white colors, copied from several Sinclair Paints color samples".