Pi

Pi is the purple I notice when a dark UI designer has clearly chosen "purple" on purpose. It sits right at that medium-dark point where it feels dense enough for UI surfaces, but it doesn't tip into the colder, inkier control of Dark & Stormy or the weighty warmth of Black Turmeric.

It reads as a steady, unmistakably purple tone with moderate saturation and a slightly cool undertone. I use it for primary accents and state colors in health tech admin panels, fintech reporting dashboards, and fintech/ops data tables where you want the hue to stay purple under different lighting, not drift toward navy. Compared to Stay the Night, Pi holds a tighter, cleaner presence, less smoothed-over and more "confident in the foreground," especially for focus rings, bold links, and selected chips.

Pair it with cool grays or crisp whites. If you drop it next to very warm surfaces, it can start to look a bit flatter than you expected, like the purple loses its edge.