LED - RGB Clear Common Cathode
Buy 10 and save 10%:€2.12 €1.75
Buy 25 and save 15%:€2.00 €1.65
How about an RGB LED? These 5mm units have four pins - Cathode is the longest pin. One for each color and a common cathode. Use this one LED for three status indicators or pulse width modulate all three and get mixed colors.
More information on the website of Sparkfun.