Choosing between fountain pen inks can come down to a very specific decision: do you want the clearly blue-named Vesper Blue 1669, or do you want to try Moon River because that exact name appeals to you? Both are small sample formats, so the practical choice is less about quantity and more about which color identity best matches the writing project or palette in mind. Here is the clean split: Vesper Blue 1669 is the direct blue-name choice, while Moon River is for shoppers who already have that named color in mind.
Quick verdict
The practical split is simple. Choose Vinta Vesper Blue 1669 if an explicitly blue color name is the priority. Choose Troublemaker Moon River if Moon River is the named color you want to explore. Both are samples in the same category, but the product titles point to different color-selection goals, so the name that matches your project is the cleanest decision rule.
At a glance
| Fountain pen ink sample | Listed price | Ink color |
|---|---|---|
| Vinta Vesper Blue 1669 | USD 3.75 | Vesper Blue 1669 |
| Troublemaker Moon River | USD 3.75 | Moon River |
Where each ink wins
- Vinta Vesper Blue 1669: It wins the blue-led search because "Blue" is explicit in the product title. The Italy country-of-origin attribute gives shoppers who consider origin another concrete reason to lean this way.
- Troublemaker Moon River: It wins the name-led search when Moon River is already the color you want to investigate. The exact title phrase gives the sample a clear identity without making a color claim beyond its name.
Product notes
Vinta Vesper Blue 1669 ink sample

Vinta Vesper Blue 1669 is the straightforward choice when the phrase itself-especially Blue-is the color cue you want to follow. The sample also carries an Italy country-of-origin attribute, which gives shoppers who consider origin a concrete reason to lean this way. The limitation is visual certainty: the actual color may vary slightly with lighting and screen differences. That caveat matters when selecting ink from a color name and screen preview. The 3mL mini plastic bottle is suited to trying the color in a small format, but it is not the right fit for someone specifically seeking a larger-volume purchase. Choose it for the explicit blue naming; pass on it only if that color label or small sample format does not match your plan.
Troublemaker Moon River ink sample

Troublemaker Moon River earns the nod when Moon River is the exact color name you want to explore. Its reason to choose is clarity of identity: the title gives you a specific phrase to search for and compare, without requiring a broader color assumption. The limitation is naming: Moon River does not identify a hue as directly as Vesper Blue 1669, so it is less specific for a shopper whose brief is simply blue ink. That makes it a color-name-led purchase rather than the clearest route to a blue-named ink. Choose it when Moon River is the intended palette cue; otherwise, Vesper's explicit blue wording is easier to act on.
Final choice by use case
- Blue-led writing or color selection: Choose Vinta Vesper Blue 1669. The explicit word "Blue" makes it the direct match for that requirement.
- Named-color exploration: Choose Troublemaker Moon River when Moon River is the color label you specifically want to try. The decision rests on that exact phrase, not an assumed hue.
- Price-only shopping: Treat the matchup as a tie. Both rows in the table show USD 3.75, so cost does not separate the samples; choose by the color name instead.