Add a touch of deep elegance to your words with Midnight, a rich and velvety blue designed especially for fibre tip pens. Crafted in the UK for discerning writers and illustrators, this ink delivers flawless flow with bold clarity, every time. No warm-up scribbles needed – it starts smooth and stays smooth, making it a joy from the very first stroke. Formulated with water-based pigments and engineered to work seamlessly with fibre tip pens, Midnight ensures consistent colour and minimal bleed-through. It’s the perfect companion for the Wren and Lumos refillable pens, and fully compatible with all Tom’s Studio pens, including your favourites for calligraphy and sketching. Each elegant 50ml bottle holds a generous supply of ink for your next burst of creativity – whether you’re journalling, sketching, or simply writing the next great novel over a cup of tea.

Product features:

• British-made fibre tip ink.
• Deep, rich blue with smooth, consistent flow.
• Specifically formulated for the Wren and Lumos refillable pens.
• Also compatible with calligraphy and fountain pens.
• Water-based, acid-free, and non-toxic.
• Reliable, no-start scribble required.
• Vegan & Eco-conscious choice.
• Gentle on fibre tips – supports long-lasting pen performance.
• Presented in a classic 50ml bottle with gold-foiled label and antique laid paper.
• Ideal for daily writing, sketching, journaling, gifting, or creative exploration.

Tom’s Studio The Wren refillable pen.

Tom’s Studio Lumos refillable fineliner.

Tom’s Studio Replacement Tips and Reservoirs.

View more by Tom’s Studio. 

Browse our ASC Ink Guide 2025 for tips, pairings, and compatibility.