Blue could also mean dark green, violet, black or brown. The ancient Greek word for a light blue, "glaukos", also could mean light green, grey, or yellow. The Greeks imported indigo dye from India, calling it indikon. They used Egyptian blue in the wall paintings of Knossos, in Crete, (2100 BC). It was not one of the four primary colours for Greek painting described by Pliny the Elder (red, yellow, black, and white), but nonetheless it was used as a background colour behind the friezes on Greek temples and to colour the beards of Greek statues. The Romans also imported indigo
Cambridge Blue (colour) Cambridge Blue (colour) Cambridge Blue is the colour commonly used by sports teams from the University of Cambridge. There is considerable dispute regarding the exact shade of the colour that should be used. Most notably, the colour used by the Cambridge University Boat Club is different from that used by Cambridge University R.U.F.C.. The current Boat Club colour was created when Alf Twinn, Cambridge University boatman 1934–1984, added more yellow to this shade, allegedly in order to distinguish it from the rugby club's colour. The Cambridge University official colour style guide defines Cambridge Blue as Pantone 557; with RGB values