Colour Blindness Simulator
Enter colours to get the hex values a person with each type of colour blindness sees, or choose a picture to see four simulated versions beside the original.
Dieser Inhalt ist auf Englisch.
Durchgerechnete Beispiele
An orange red
#E4572E
#E4572E: protanopia #7F7128, deuteranopia #A29128, tritanopia #FB324F, achromatopsia #858585
Each condition gives its own hex value.
Pure green
#00ff00
#00FF00: protanopia #FFE500, deuteranopia #EFD63A, tritanopia #00F7D9, achromatopsia #DCDCDC
Bright green turns yellowish for the first two types.
Über Colour Blindness Simulator
This simulator shows how colours look to people with different kinds of colour blindness. Enter colours to get the hex value a person with each condition sees, or choose a picture and see four simulated versions beside the original.
Protanopia and deuteranopia make red and green hard to separate, tritanopia affects blue and yellow, and achromatopsia is the absence of colour vision. The simulation shows the general effect, and real vision varies between people.
So verwenden Sie Colour Blindness Simulator
- Type colours as hex values, one per line, to see the simulated values.
- Or choose a picture to see it as each type of colour blindness sees it.
- Use what you see to choose colours that stay distinct.
Typische Einsatzzwecke
- Checking a chart or map for colours that are hard to tell apart
- Testing a brand palette for accessibility
- Reviewing a design before it is published
- Teaching how colour blindness changes what people see
Häufige Fragen
How common is colour blindness?
It affects about 1 in 12 men and 1 in 200 women, and red and green confusion is the most common kind.
How accurate is the simulation?
It uses a standard model of how the eye responds. It shows the general effect, but real vision varies, and many people have a milder form than the full conditions shown here.
What can I do to make a design work for everyone?
Do not rely on colour alone. Add labels, icons or patterns, and keep strong differences in lightness between colours that carry meaning.
What is the difference between the four types?
Protanopia is missing red cones, deuteranopia is missing green cones, tritanopia is missing blue cones and achromatopsia means no colour is seen, only light and dark.