No, there were no team alignments as far as anyone knows. The strips were produced in one sequence (based on the boxing) and the 4 on 1 cards all have mixed subjects; I have never see a pure baseball one. Also, based on the boxing strip and the 4 on 1s I've seen, the duos do not vary: they follow the sequence of the strips.
I can say for certain that there was a rainbow; here are light blue and green boxing strips:
Odds are your four came from one strip, hence the single color.
Looks like you have a rainbow to keep chasing
