The Diamine Passion Red (30 ml) is not your typical bold red—it leans toward a softer, slightly pinkish red, giving it a lighter and more subtle appearance on the page. Compared to stronger reds like Brilliant Red, this one feels more relaxed and less saturated, which makes it stand out in a different way.
In terms of performance, it follows Diamine’s usual formula: water-based, safe for all fountain pens, and easy to clean. The flow is balanced—neither too wet nor too dry—and it dries relatively quickly (around 20 seconds on standard paper). Shading is present but mild, so the color stays fairly even across most writing styles.
The 30 ml bottle comes in Diamine’s standard compact plastic design, which is practical if you like switching inks often or trying new colors. Just keep in mind the narrower opening can make filling larger pens a bit less convenient, especially piston fillers.
