Contrast
ColorAide provides WCAG 2.1 color contrast by default, but there are some criticisms related to how well the WCAG 2.1 algorithm performs. This is not a failing of ColorAide, but the contrast algorithm in general.
ColorAide Extras currently provides a few color contrast methods for evaluating other approaches.
| Methods | Symmetrical | Description |
|---|---|---|
weber | Contrast that uses the measure also referred to as Weber fraction. | |
michelson | Peak-to-peak contrast. |