Color Blindness Simulator
See how an image or design looks with colour vision deficiencies.
How it works
- 1Add a screenshot or image.
- 2Choose a type of colour vision.
- 3Compare with the original and download.
Features
- 7 types of colour vision.
- Side-by-side view.
- Scientific model (Machado 2009).
- Private: runs in your browser; nothing is uploaded.
Frequently asked questions
Which type should I check first?
Deuteranomaly and protanopia: red-green deficiencies are by far the most common.
How do I fix problems?
Don't rely on colour alone: add labels, patterns or stronger contrast.
Related tools
Color ConverterConvert colours between HEX, RGB, HSL, HSV, CMYK and OKLCH, and check contrast.Color ExtractorFind the main colours of an image, with HEX, RGB and HSL codes.Image CompareCompare two images with a slider and highlight every pixel that changed.Add Border to ImageAdd a border, or pad a photo to a square or story shape without cropping it.