The PicoBuck LED Driver is an economical and easy to use driver that will allow you to control and blend three different LEDs on three different channels.
All About LEDs - SparkFun Electronics
DEV-14779: The LumiDrive LED Driver is SparkFun's foray into all things Python on micro-controllers. With the SparkFun LumiDrive you will be able to control and personalize a whole strand of APA102s directly from the board itself.
SparkFun LumiDrive LED Driver
PicoBuck LED Driver - RobotShop
PicoBuck - 3x LED driver - 36V/330mA Botland - Robotic Shop
SparkFun LED Driver Breakout - LP55231 - BOB-13884 - SparkFun Electronics
Luxeon Rebel LED Tri-Color Driver - COM-09834 - SparkFun Electronics
PicoBuck - 3x LED driver - 36V/330mA Botland - Robotic Shop
PicoBuck Hookup Guide v12 - SparkFun Learn
BOB-10616 SparkFun Electronics, Development Boards, Kits, Programmers