Watercolour vs Gouache vs Acrylic: Which Paint Should You Choose?

Watercolour vs Gouache vs Acrylic: A Practical Guide

All three are water-based paints, but they behave very differently on paper and canvas. Choosing the right medium can make your painting practice feel natural and enjoyable — or frustrating. Here's an honest comparison to help you decide.

Watercolour: Transparent and Luminous

Watercolour is a transparent medium — the white of the paper shines through the paint, giving it a characteristic luminosity that no other medium can replicate. It's applied in thin, translucent washes that build up in layers, and mistakes are difficult (though not impossible) to correct.

Strengths: portability, luminosity, speed of drying, beautiful wet-on-wet effects, and a long tradition in illustration and fine art.

Challenges: requires planning and confidence; less forgiving of errors than opaque media.

Best for: botanical illustration, landscape painting, urban sketching, loose expressive work, and artists who enjoy working with light and transparency.

Gouache: Opaque and Versatile

Gouache is essentially opaque watercolour. It uses the same binders and is water-soluble, but contains more pigment and a white filler (usually chalk) that makes it opaque. Unlike watercolour, you can paint light colours over dark ones, making corrections much easier.

Strengths: flat, matte finish ideal for illustration and design; highly mixable; can be reactivated with water even when dry; works on paper, card, and illustration board.

Challenges: can crack if applied too thickly; dries slightly darker than it appears wet; less luminous than watercolour.

Best for: graphic illustration, character design, fashion illustration, and artists who want the portability of watercolour with the coverage of an opaque medium.

Acrylic: Permanent and Flexible

Acrylic paint is a plastic-based medium that dries permanently and is water-resistant once cured. It can be thinned with water to behave like watercolour or used straight from the tube for thick, impasto effects. Unlike watercolour and gouache, dried acrylic cannot be reactivated.

Strengths: extremely versatile; works on almost any surface; permanent and water-resistant when dry; can mimic oil paint effects; wide range of mediums available to alter texture and drying time.

Challenges: dries quickly (which can be a challenge for blending); permanent once dry; less portable than pan-based media.

Best for: mixed media, large-scale work, canvas painting, and artists who want a durable, permanent result.

Which Should You Start With?

If you're drawn to delicate, luminous work and enjoy the challenge of working with transparency — start with watercolour. If you want the portability of watercolour but prefer to be able to correct mistakes and work opaque — try gouache. If you want maximum versatility and permanence across a wide range of surfaces — go with acrylic.

Many artists work in all three, using each medium where it excels.

Explore Our Paint Collections

Browse our watercolour paints and sets and kits to find the right starting point for your practice.