hi loriw, not sure if you've finalized your decision yet. I'm a fan of dark purple because it's a gorgeous neutral. Also biased because I favor black. Really depends on whether you want a neutral or a color.
After reading all this I ordered my first Ignes bag, the mini ormala in dark purple. I wanted a neutral and after hearing that is how dark it is I went with it. The aubergine looks beautiful also though.