Color match the bar tape to the red or the white accents along with the saddle.
Red bar tape and red/black or red/white saddle OR white bar tape and white/black or white/red saddle.
I think white bar tape and a white saddle with red/black accents would be best. Fizik made a saddle that was overall white, a black center, with thin little 1/16" wide stripes of red.