What can pastel technique add to the visual world of a picture book?

When we open a children’s book, the images often speak before the text does. A soft background, a warmer colour area or a gently fading shadow can immediately tell us what kind of world we have entered. Pastel technique is a particularly sensitive tool for this, because it does not carve the story into hard edges. It builds atmosphere layer by layer.

Pastel is a dry, pigment-rich medium that can feel both intense and soft. It can be used to build strong colour surfaces, but also delicate transitions, mistier backgrounds, softer faces or warmer landscapes. That is why it suits many picture book worlds where the atmosphere is built from shades and transitions rather than loud visual gestures.

What is pastel technique?

Pastel technique is based on dry, strongly pigmented drawing materials. The surface can be velvety, powdery, layered or softly blended, depending on how the artist works with it. One of the strengths of pastel is that colours do not simply fill shapes. They can breathe into one another while the surface keeps its own material quality.

In a children’s book, this is especially interesting because an image does not always need to work through strong outlines. Sometimes a quieter background, a softer facial shadow, a slightly blurred landscape or a warmer patch of light can express the feeling of the scene more accurately. In such cases, pastel is not merely decorative. It becomes a tool for building atmosphere.

A warm and welcoming visual world

The softer tones of pastel can easily create a warm and welcoming atmosphere. This does not mean every pastel illustration has to become sweet or overly gentle. It means the technique is good at handling transitions that make a scene feel less cold and less angular.

For a young child, the mood of an image is often the first point of connection. Before every detail of the text is understood, the child can already sense whether the picture feels calm, joyful, mysterious or tense. Pastel is a fine instrument in this respect: it does not shout the mood, it lays it down gently.

Texture and depth on picture book pages

One of the most important qualities of pastel is texture. The surface is not completely smooth, and this can make the image feel more alive. A cloud, a piece of clothing, a meadow, a stone wall or a distant hillside may all need a different kind of surface treatment. If every detail has the same softness, the image can lose its inner structure. If the textures differ gently, the child’s eye can move through the picture more easily.

Pastel allows layers to be built. A lighter base tone can receive a warmer shade, then a soft shadow, and finally a stronger colour accent. This gives the image depth instead of leaving it as a flat surface. A child will not read this as a technical feature, but will feel that the picture has space, air and something to discover.

Rich colour without visual noise

Pastel can offer a rich colour world, but in a children’s book the goal is not to use every colour at once. Colour has a job to do. A yellow patch of light can warm a scene, a blue shadow can quiet it, a pinkish tone can soften it, while a stronger orange or red will immediately pull attention.

This is why the richness of pastel colour needs control. If too many colour areas carry the same visual weight, the child may not look where the story is trying to lead. When colours support one another, the image can be rich and still easy to read.

How can pastel affect the child reader?

It is easy to make large claims about how an illustration develops a child’s emotional intelligence or cognitive abilities. I would be more careful with that. A picture alone does not solve educational tasks, but it can help a child connect emotionally with a scene.

Softer pastel surfaces, gentle light and subtle transitions between shades can make that connection easier. A sadder scene does not have to become heavy if the image holds it gently. A joyful scene does not have to become loud if the colours do not compete with one another. This is where pastel can be especially useful: it does not simplify emotion, but softly outlines it.

Characters and scenes in a pastel atmosphere

In character illustration, pastel can handle facial expressions and body language with particular sensitivity. A smile does not become warm simply because it has a strong colour. It becomes warm when the shades around the face, the light in the eyes and the posture work together. Pastel is a delicate tool here: it does not need to mark everything strongly, yet it can still show a great deal.

In scenes, pastel is strong at building atmosphere. A quiet forest clearing, a fairy-tale castle, a meadow, a city palace or a festive moment may all need different colour rhythm and surface treatment. Pastel is a good choice when these settings need a softer, more inhabitable visual space instead of a sharp poster-like effect.

When is pastel technique the right direction?

Pastel technique or a pastel-like visual effect can be a good direction when the book needs a warm, sensitive, detailed but not overly hard visual world. It can work especially well for lyrical stories, nature-based picture books, delicate emotional scenes or books where softness and intimacy are important parts of the atmosphere.

It is not the best choice for every book. A strongly graphic, highly contrasted, minimalist or poster-like visual style may need another technique. So with pastel, too, the question is not simply whether it is beautiful. The question is whether the story truly needs this visual voice.

Author: Ágnes Ujréti
illustrator and graphic artist – Galantusz Grafika, 2026