Coloring Book Page

Illustration · Line Art · Coloring Book

Download examples

Coloring Book Page, Clean black outlines on white, closed shapes, nothing shaded — Full page scene·Nano Banana Pro

Recipe

The style is the recipe. The subject is yours.

The examples above were generated with Nano Banana Pro and Seedream 4.5. The recipes below are written for GPT Image and Ideogram, so treat the settings as a starting point rather than the exact run.

A description in plain sentences. This is the version to start with, and it works on any current image model. Settings below are the ones we used on GPT Image; treat them as a starting point.

Make it yours

The recipe is the style, not the picture. Put your own subject in and the highlighted part of the prompt changes.

Prompt

A coloring book page. A friendly dragon sitting in a garden with flowers, a watering can and a small bird, drawn in clean uniform weight black outlines on a pure white background. Every shape is fully closed. No shading, no hatching, no grey tones, no fill. Detail spread evenly across the page with generous open areas, composition filling the frame, printable at A4.

The prompt gets you close. Feed one of the examples in as a style reference for the rest. Download the images

Use the examples as a reference

Download the examples

Send the example as an input image to the images.edits endpoint alongside the prompt, or attach it in ChatGPT. It follows composition closely, so describe your subject firmly or it will copy the example.

Settings on GPT Image

Size: 1024 x 1365
Quality: High
Background: Opaque white
Output: PNG

Tips

1Say every shape fully closed. Open shapes are the main failure mode.
2No shading, no hatching, no grey. All three, because models add one of them anyway.
3Uniform line weight matters more than detail. Thick and thin lines look like an illustration, not a coloring page.