If you don't have anything pink can you maybe just wear something simple, and see if you can buy a simple pink scarf or something to honour your friend's request? I wouldn't wear shorts, jeans or jeans fabric to a funeral but you know your friend and what's appropriate.

I went to the funeral of a friend a few years' ago and her husband asked that people not wear black, but red to honour his wife. I wore a cream dress with a red scarf. There were lots of lighter colours with red shoes, red ties, red hats, red earrings/necklaces/bangles etc.