Two ways to use it
Make colors work for you — or see them through someone else’s eyes.
Switch between personal color adjustment and color-vision simulation depending on what you need.
Color accessibility for the web
Colorblind
Filter
Adjust website colors for your eyes, simulate how different color-vision types perceive a page, and find the right filter with a 1-minute calibration test.
For my eyesImprove colors for comfortable browsing
Through their eyesSimulate color-vision differences
Calibrate your eyesFind your filter and strength in 1 minute
Personal
Adjust colors
Choose Protan, Deutan or Tritan adjustment and control the intensity.
Calibrate
1-minute test
A short Ishihara-based test helps determine which filter and strength may suit you.