YOU SAID:

Both teams were wearing the same colours, which made things confusing

INTO JAPANESE

両方のチームが同じ色を着ていたため、混乱を招きました

BACK INTO ENGLISH

Both teams wore the same color, which was confusing.

INTO JAPANESE

両方のチームが同じ色を着ていたので、混乱しました。

BACK INTO ENGLISH

I was confused because both teams wore the same color.

INTO JAPANESE

両方のチームが同じ色を着ていたので、私は混乱しました。

BACK INTO ENGLISH

I was confused because both teams wore the same color.