Smaller apa106 led, more smd style
2 mm x 2 mm APA102-202 RGB LED  

 



Used in the Adafruit DotStar products.




See more at Digikey.

LINK: Digikey Addressable RGB LEDs



The Ultimate RGB Lighting

Use 1.8 mm x 1.8 mm Luxeon Color C Line  LEDs with color mixing optics.



Use 2 red, 2 blue, and 1 green.
I prefer the deep red and royal blue.  

Drive them with a TI TLC5973  3-Channel LED Driver 



The above driver is only 50 mA and the Color C will be very bright.
They will be much brighter if driven with a 700 mA driver with a PWM control pin. 





This circuit uses the TLC5973 to drive an LM3414 driver or a Mean Well LDD-700H dimmable LED driver.   

 





This is three 450 nm royal blue driven at only 10 mA.  







sixteen 660 nm deep red driven at 700 mA.