Robert Oster Viola Fountain Pen Ink — 50 mL

Robert Oster Viola is a dusty light purple with a strong blue undertone. It has the soft, springlike quality of lilac, but enough blue in the mix to keep it from becoming sugary or overly pink.

Independent reviewers note attractive shading and generally average flow. Some wet-writing tests show a soft blue sheen or edge definition, while others emphasize the blue undertone rather than true sheen; it is safest to think of Viola as a shading purple whose secondary effects depend on paper and saturation.

Ink character

• Color: dusty lilac-purple with a blue undertone
• Shading: medium
• Sheen: subtle blue edge effect in some wet applications
• Shimmer: none
• Flow: moderate
• Water resistance: low
• Best suited to: journaling, letters, expressive notes

Viola is light without becoming faint: a softened purple that feels literary and personal, especially on cream paper or in a broader nib.