Do Apple and Google really care about WCAG when it comes to color contrast?

1. How does color and contrast affect accessibility?
2. What is color contrast Wcag?
3. Why is contrast ratio important for accessibility?
4. What is WCAG contrast ratio?

How does color and contrast affect accessibility?

Color contrast impacts the readability of your content on the web and in print. It is especially important for users who are low vision or for users who are colorblind. Good color contrast means all users can see your content no matter the device they're using or the lighting of their surroundings.

What is color contrast Wcag?

In WCAG 2, contrast is a measure of the difference in perceived "luminance" or brightness between two colors (the phrase "color contrast" is never used in WCAG). This brightness difference is expressed as a ratio ranging from 1:1 (e.g. white on white) to 21:1 (e.g., black on a white).

Why is contrast ratio important for accessibility?

Whenever using color in images, ensure that the colors have a contrast ratio of at least 4.5:1. This ensures that the text is still readable to those who may have color blindness.

What is WCAG contrast ratio?

WCAG 2.1 requires a contrast ratio of at least 3:1 for graphics and user interface components (such as form input borders). WCAG Level AAA requires a contrast ratio of at least 7:1 for normal text and 4.5:1 for large text.