rabbitfert.blogg.se - Colour contrast analyser multi screen

These guidelines don’t have to be limiting.

You can also check out W3C’s short description of how Lee, an online shopper with color blindness, is affected by color issues, or watch W3C’s perspective video to learn more about how good contrast helps contrast-sensitive users: The different contrast requirements explained with examplesĭesigners and developers have the power to affect millions of people if we just know contrast accessibility guidelines. Or, if we flip that and say the design choice is informed by contrast accessibility guidelines, millions of people can read the text and see visuals clearly.

This means millions of people can face a barrier by a seemingly simple design choice.

The International Agency for the Prevention of Blindness estimates 295 million people with moderate to severe vision impairment (or low vision).

The National Eye Institute estimates that 1 in 12 men have some type of color blindness, which means there are at least 300 million people on earth who are color blind.

Good contrast makes it easier for everyone to read the text and distinguish graphical elements.īut, what might just be difficult to read for a visual user could be unreadable to a user with contrast sensitivity due to low vision or color blindness.Ĭheck out these numbers to understand how many people are affected by contrast sensitivity and could face a barrier in accessing content if contrast accessibility guidelines aren’t met: Just from the examples above, it’s clear that contrast matters for everyone. Back to top Who is affected by low contrast issues?