Here's a graph I keep updated of the various new uni combinations worn by the Rams and the wons and losses for each. This is for 2020, 2021, and the first 2 games in 2022. It includes post-season games, but not pre-season.
The highest winning percentage combination is
1. Bone jersey and Bone pants 89%
2. Blue jersey and Bone pants 86%
Third place is a tie:
3T. Bone jersey and yellow pants 75%
3T. Blue jersey and yellow pants 75%