I think apes are generally black or brown under the fur, not pink. See e.g.
https://www.reddit.com/r/pics/comments/bacdh/here_is_a_pic_o...
https://twitter.com/gorillasdaily/status/1417126388281266185...
Here's a popular-press citation for the consensus that our furred common ancestor was pink skinned: https://www.discovermagazine.com/planet-earth/why-did-darker...