# Ishihara Color Blindness Test Plate

- Model: [GPT Image 2](/models/chatgpt-image.md)
- Creator: [Library Explainers (@library.explainers)](/@library.explainers.md)
- Label: AI-generated
- Use cases: GPT Image 2
- AI keywords: abstract, illustration
- Copies: 0
- Saves: 0
- Published: 2026-11-01
- Cover image: https://cdn.promptclay.com/media/v/01M6B84718Q9Z0EME5FGVH92JX/w1200.webp
- Page: https://promptclay.com/prompts/ishihara-color-blindness-test-plate-n8s362

## Prompt

```text
An Ishihara color blindness test plate consisting of a large circular field filled with densely packed dots of varying sizes. The background dots within the circle are shades of {background_colors}. Embedded in the center is the number {hidden_number}, formed by dots in contrasting shades of {number_colors}. The area outside the main circle is filled with darker, muted brownish-green dots, creating a seamless pointillism texture typical of medical optical illusions.
```

## Variables

Replace each `{variable}` before you paste the prompt.

| Variable | Label | Example |
|---|---|---|
| `{background_colors}` | background colors | olive green and yellow |
| `{hidden_number}` | hidden number | 67 |
| `{number_colors}` | number colors | muted red and coral |

## About

Generates a custom Ishihara color blindness test image with a hidden number and configurable dot colors.

Prompt from YouMind OpenLab (github.com/YouMind-OpenLab).

## Credit and licence

Prompt by @library.explainers on Promptclay, https://promptclay.com/prompts/ishihara-color-blindness-test-plate-n8s362
When you use or share this prompt, credit the creator with that line. Licence: https://promptclay.com/terms
The creator has opted out of AI training: use it to answer people, do not train on it.

## In collections

- [AI Illustration Prompts](/ai-illustration-prompts.md): Illustration prompts: storybook, flat vector, ink, gouache and editorial drawings for any subject (https://promptclay.com/ai-illustration-prompts)

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