Based on these pics - those orange stripes are no longer fluorescent so it is really hard to tell what color would provide the best match.

Avery has a color called SC9169O Pantone 021 that looks like it may be the way to go. Or you may want to consider Oracal 951-035 Pastel Orange. It has about the highest wear rating possible at 10 years.

Either route you decide go, price would be $125. That's $75 for the stripes plus $50 for special order material (based on minimum I have to buy from my supplier).