So long as you know which bulb performs which function...
colors refer to the wire that connects--first color is basic wire color, second (if persent) is the tracer stripe.
left taillight assy:
turn signal: blue/brown
back up: 2 x blue/white
brake: 2 x green/red
right tail light assy:
turn signal: blue/violet
the solid brown wires on both sides are the ground wires, and connect to the terminals on the tail light housings that are not part of a bulb socket.