Driving 5v from 3.3v

Total noob here with anything more than connecting LEDs :stuck_out_tongue:

Anywho I'm trying to drive a 5v LED sign circuitry from 3.3v.
All the multiplexing is already done, all I have to drive is basically a 3 bit line for row, some more bits for color, output enable, and clock.

What's the best way to do this?
Transistors or some kind of buffer?

Thanks!

Use a transistor, base through a resistor to the output pin, collector to LED, other end of LED to resistor, other end of resistor to +5V.
Emitter AND ground of 5V supply to arduino ground.