For a 5 V low-side drive through the same 2N7002K MOSFET arrangement, the series-resistor values per color at 20 mA (and their nearest E24 values) are:
Table
LED Color
Vf_typ (V)
If (mA)
R = (5 V – Vf_typ) / If
Nearest E24 Value
Blue / Green
3.5
20
(5 – 3.5)/0.02 = 75 Ω
75 Ω
Orange
2.0
20
(5 – 2.0)/0.02 = 150 Ω
150 Ω
If you prefer lower currents (10 mA), simply double each: