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Colouring Pens: How to Choose the Right Set for Drawing, Lettering and Creative Crafts

Choosing a set of colouring pens isn't just about counting the colours. The type of nib, the ink formulation and the surface you're using often matter far more. A nib that flattens, ink that bleeds through the paper or a poorly thought-out palette can quickly turn an appealing set into a disappointing purchase.

Here are the criteria to consider before choosing watercolour pens, brush pens, artist markers or acrylic pens.

Common Pitfalls Before You Buy

1. Confusing the Number of Colours with Versatility

A set of 50 or 65 shades offers a generous palette, but that doesn't necessarily replace a dual-tip set or one designed for a specific purpose. In brush lettering, the flexibility and precision of the nib matter more than the number of colours. For filling in small areas, a fine, consistent nib will often be more enjoyable to use.

Also look at the composition of the palette: greys, browns, skin tones, cool colours and dark shades are invaluable for creating shadows and nuanced illustrations. A set made up entirely of very bright colours will quickly show its limitations.

2. Using Watercolour Ink on an Unsuitable Surface

Transparent, water-based inks don't behave like opaque paint. On thin paper, they can create halos or bleed through the page. To achieve beautiful gradients, it's best to use watercolour paper or, at the very least, a surface that's thick enough.

Acrylic markers, whose ink is opaque, can be used on wood, glass, ceramic, metal or canvas. However, always test on a small area first: adhesion and the final result depend on the surface preparation and its porosity.

3. Overlooking Storage and Drying

A nib left exposed to the air dries out quickly, especially if the cap doesn't seal properly. Horizontal storage is generally recommended to ensure even ink distribution. To extend the life of your pens, recap them immediately after use and avoid very hot places or direct sunlight.

Technical Criteria to Check

Nib: Fine, Bullet, Brush or Dual-Tip

  • Fine nib: ideal for outlines, details, annotations and small colouring areas.
  • Bullet nib: practical for drawing consistent lines and filling medium-sized surfaces.
  • Flexible brush nib: its thickness varies depending on the pressure you apply, making it particularly suitable for illustration, creative calligraphy and brush lettering.
  • Dual-tip pens: they usually combine a fine nib with a brush or broad nib. A handy solution for carrying fewer pens.

The term 'flexible' doesn't mean all nibs offer the same range of stroke width. For beginners, a nib that's soft but still controllable will be easier to master than a very responsive model.

Ink Formula

A water-based ink is generally suitable for paper and allows you to create blends or watercolour effects using a damp brush. Transparent inks let the paper show through, while acrylic inks offer more opaque coverage, even on some dark surfaces.

Don't assume that a 'bleed-proof' marker will work on all papers. The weight, texture and drying time of the paper strongly influence the result. In a colouring book or bullet journal, slip a protective sheet under the page to avoid unpleasant surprises.

Palette and Set Organisation

The right set depends above all on how often you plan to use it. A set of 6 to 12 colours is enough to try out a technique or add to a collection. Sets of 24 to 36 colours offer more scope for drawing, manga, creative journaling and illustration. Larger sets become worthwhile if you colour regularly and want to avoid buying more pens as your projects progress.

Which Set Is Right for You?

Recommended for: Beginners on a Budget
Amsterdam Koi Coloring Brush Pen Sweets set

Amsterdam Koi Coloring Brush Pen Sweets set | 6 colours

Why this choice suits this profile: With its six colours, this set lets you discover brush pens without investing in a large palette. Its transparent, water-based ink is suitable for sketches, notebooks and your first attempts at gradients.

How this product avoids the pitfall

Its compact format stops you buying a large palette before you know if watercolour ink really suits your practice.

Key advantage and strengths

Flexible brush nib, blendable ink and the ability to create effects with water.

Recommended for: High-End Enthusiasts
STABILO Pen 68 Brush Art Markers 30 colours

STABILO Pen 68 Brush Art Markers – Set of 30 colours

Why this choice suits this profile: With 30 shades and a flexible nib, this set supports illustration, lettering and adult colouring projects done on a regular basis.

How this product avoids the pitfall

The flexible nib and water-based ink let you vary your stroke width and create gradients with just one set.

Key advantage and strengths

30 colours, adjustable stroke width and a cardboard case. The manufacturer states that the barrel and cap are made from 96% ISCC PLUS certified bio-based plastic.

Recommended for: Specific Uses and Heavy Users
STAEDTLER double-ended watercolour marker pens 18 colours

STAEDTLER double-ended watercolour marker pen – 18 colours

Why this choice suits this profile: Each pen combines a brush nib with a fine nib. A format well suited to illustrators, art students and manga enthusiasts who switch between fine details and broad washes.

How this product avoids the pitfall

The dual tip reduces compromises: the fine nib handles outlines, while the brush nib allows for expressive strokes and washes.

Key advantage and strengths

18 colours, water-based ink and two nibs per pen. Blends can be created on suitable paper using a damp brush.

Recommended for: Detail Lovers, Students and Versatile Creators
STAEDTLER Design Journey dual-tip fibre pens 36 colours

STAEDTLER Design Journey Dual-Tip Fiber Markers – 36 colours

Why this choice suits this profile: Its extensive palette and fine and broad nibs are suitable for daily drawing, bullet journaling, colour-coded notes and a wide variety of creative projects.

How this product avoids the pitfall

You get two stroke widths without having to carry two different sets, which avoids duplicate purchases.

Key advantage and strengths

36 colours, dual fine and broad nibs, water-based ink and horizontal storage recommended.

Looking for other options?

We've selected a complete, real-time updated range of products that meet these exacting criteria, while complying with European safety regulations.

Tips for Preserving Your Pens

  • Replace the cap until you feel or hear it click shut properly.
  • Store sets horizontally, unless the manufacturer advises otherwise.
  • Slip a sheet of paper between pages in notebooks and colouring books.
  • Reserve acrylic pens for compatible surfaces and always test first.
  • If you create artwork with transparent inks, avoid displaying it in direct light to preserve its shades.

Frequently Asked Questions About Colouring Pens

Which pens should I choose for adult colouring?

For large areas, a bullet or broad nib gives an even fill. For detailed patterns, go for a fine nib. Brush pens are a good choice if you want to vary your stroke width or add watercolour effects. The paper in your colouring book also plays a key role: always test the colour on a similar page before you start.

How do I get a watercolour effect with pens?

Apply the ink to watercolour paper, then spread it with a damp brush. Depending on the pen's formulation, you can also layer two shades before they dry. Transparent, water-based inks generally lend themselves better to this technique than opaque inks.

How long can a set of pens last?

The lifespan depends on how often you use them, the pressure you apply to the nib, the type of paper and storage conditions. Heavy use on a rough surface wears down the fibres more quickly. Recapping pens straight away and keeping them away from heat reduces the risk of them drying out prematurely.