I have a swatch with me. I'd say your photo is just right.It is amazing how we all see things differently. To me acid nappa is not as bright as this wallet.....The wallet is the right hue, but it needs to be dialed down with some white to be closer to acid nappa. Here is a pic Marco sent me: I think it is pretty true to color.
Hopefully this won't devolve into the blue or gold dress saga! [emoji3]