Verify color is not used as the only visual means of conveying information, indicating an action, prompting a response, or distinguishing a visual element on the page.
Details
Rule ID
Color 2
Definition
Color must not be the only way to convey information on the page.
Purpose
For people with color blindness and other forms of visual impairments will not be able to see colors or color differences.
This requirement also includes references to color of content on page to identify some type of information, there should be redundant labeling of the content, for example using text labels to also identify and refer to the information.
Information about the element associated with the result.
The information typically includes the tag name, accessible name or other information related to the rule requirements.
"Page" means that the result applied to the page. For example, the rule "One main landmark on the page" is a page level rule.
Element Position
The element position is based on the DOM order of elements in the page.
The element position maybe useful in helping to locate a specific element on the page evaluated (e.g smaller numbers are typically toward the beginning of a page and larger numbers typically toward the end of a page).
Element position 1 is the first element.
The highest element position is the last element.
Element position values for most rule/page results will not be consecutive since a rule only applies to a sub set of elements found on a page.