The Tottenham away jersey for the season 2019/20 is navy , purple with white contrast.
Though the clubs were allowed to wear a sponsor logo to the left arm sleeve not all clubs had embarked on that quite yet. Thus Spurs would go on and wear to Premier League badges.

Tottenham Hotspur away kit 19/20 sleeve badge close up.

And finally the official name and number kit which was introduced for the 2017/18 season and worn until the end of the 2022/23 season.
