I was all set so I set to figuring out how to split up the string. I ran a 9V battery through a 470 ohm resistor to clip leads (limiting current to no more than 20mA or so). I clipped a volt meter between the 9V negative and the resistor. Without anything inline, it naturally read 9 volts. Then I popped out one of the LED's and put it in parallel to the voltmeter. I flipped it around so it would light up, and then read the meter. The first one was blue and it read 3.0 volts -- that's the voltage drop of the LED. The others are as follows:
Red: 5.2V *
- Note that the red surprised me at 5 volts ... I was expecting more like 2 volts.