We have always advocated not using colour in a CV as you run the risk of people having run out of ink or having a poor quality printer.
But we’ve had a change of heart on this one!
As printers have improved in quality, some colour can actually really improve a CV. It seems as well that people are far more diligent these days about keeping printers properly topped up with ink.
You still need to be careful though…
Don’t go overboard, keep it subtle so that presentation is enhanced and not overwhelmed (unless you are a graphic designer) and make sure that you use colours that will print well in black and white.