For the blue and green LEDs, I'd put them 2 in series with a resistor, and another 2 in series with another resistor.
However, 30mA is about the maximum you should ever take out of an Arduino pin. So you should use two separate circuits from different pins. Also, 600mA would be a bit too close to the maximum current allowed in a 2N2222, and we've not even considered the power dissipated.
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