Ever hear of a thing called RGB? Red, Green, Blue? How about an RGB LED? These 5mm units have four pins - Cathode is the longest pin. One for each color an
SparkFun RGB LED Breakout - WS2812B, BOB-13282
A Diverse Selection of Electronics Books, Breakout Boards, and Development Tools, PDF, Switch
LED - RGB Diffused Common Anode - COM-10821 - SparkFun Electronics
8mm RGB LED (Common Anode) 8-Pack / 100-Pack
LED - RGB Diffused Common Cathode - COM-09264 - SparkFun Electronics
Diffused LED - RGB 10mm - COM-11120 - SparkFun Electronics
RGB LED - 5mm Diffuse - Common Cathode - RGBLED5MMDIF
Diode Rectifier - 1A 50V, COM-08589
HSV colour cycling LED on Arduino – We Saw a Chicken …
LED - RGB Diffused Common Cathode, Sparkfun COM-09264