Tips for pairing them
Pick one as the lead and use the other for details, with a neutral base. Dark purple with sage green is elegant; lilac with olive green is soft. At home, green plants against a lilac wall or a purple armchair look great. In fashion, avoid wearing both colors at full intensity at once.
Contrast between them: 2.2:1. Don’t put text in one color on the other: it’s hard to read.