A simple way to master color mixing: when in doubt, black and white. Neutrals in general (khaki, gray, navy, denim, gold, silver, etc.) are great for color mixing, but black & white, especially together, are definitely the superstars of this pairing (and in this case, stripes)
It's like black and white is Justin Timberlake, and every other neutral is N'SYNC. You literally cannot go wrong.