Exhibit 1: Low-contrast text
Using low contrast text means that some people can't read text at all or have a hard time reading it.
That affects, for example:
- people with low vision
- people who use low-quality screens
- people who use a screen in bright environments (e.g., sunlight)
In this demo, the text color is bright yellow, and the background color is white, making it hard to read the text.
Contrast is the contradiction in luminance or colour that makes an object (or its representation in an image or display) distinguishable. In visual perception of the real world, contrast is determined by the difference in the colour and brightness of the object and other objects within the same field of view. The human visual system is more sensitive to contrast than absolute luminance; we can perceive the world similarly regardless of the huge changes in illumination over the day or from place to place.