Without seeing your schematic then we don't know if the transistors are emitter-followers that do not need a series base resistor or if they are common-emitter types that need a series base resistor.
EDIT:
Are you making the High Power Mood Light project at Electronics Lab?
The author originally used common-emitter type of LED drivers without series base resistors and people wrote in that the microcontroller got so hot that it stopped or was damaged.
Then the author added series base resistors but selected a value that was 15 times too high which made the LEDs dim when the transistors had less gain than typical.
The current-limiting resistor for the red LED had a value that was too low that caused the LED to burn out.