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accessibility-checker-engine

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An automated accessibility checking engine for use by other tools

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<!DOCTYPE html> <html lang="en-US"> <head> <title>style_color_misuse - Accessibility Checker Help</title> <script> RULE_MESSAGES = {"en-US":{"group":"Combine color and descriptive markup to convey information","Pass_0":"Rule Passed","Potential_1":"Verify color is not used as the only visual means of conveying information"}}; RULE_ID = "style_color_misuse" </script> <!-- /****************************************************************************** Copyright:: 2022- IBM, Inc Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. *****************************************************************************/ --> <!-- Title and messages generated at build time --> <link rel="icon" href="https://ibm.com/able/favicon-32x32.png" type="image/png"> <link rel="icon" href="https://ibm.com/able/favicon.svg" type="image/svg+xml"> <link rel="stylesheet" href="../common/help.css" /> <script type="module"> import "https://1.www.s81c.com/common/carbon/web-components/version/v1.35.0/code-snippet.min.js"; import "https://1.www.s81c.com/common/carbon/web-components/version/v1.35.0/list.min.js"; </script> <script src="https://cdn.jsdelivr.net/npm/marked/marked.min.js"></script> <script src="../common/help.js"></script> </head> <body> <div class="bx--grid toolHelp"> <div class="bx--row"> <div class="bx--col-sm-4 bx--col-md-8 bx--col-lg-16 toolHead"> <!-- Group message injected here --> <h3 id="ruleMessage"></h3> <!-- Severity level injected here --> <div id="locLevel"></div> <!-- Rule specific message injected here --> <p id="groupLabel"></p> </div> </div> <div class="bx--row"> <div class="bx--col-sm-4 bx--col-md-5 bx--col-lg-8 toolMain"> <!-- Start main panel --> <mark-down><script type="text/plain"> ### Why is this important? Using descriptive markup and visual differences together with color enables users who cannot see color to understand the meaning conveyed through color differences. <!-- This is where the code snippet is injected --> <div id="locSnippet"></div> ### What to do * If color is used to indicate required fields, also use an asterisk (`*`) to visually indicate required fields without color (e.g., “required fields are red and indicated with `*` ") and indicate them programmatically with the `required` attribute * **Or**, if the use of color conveys other meaning or information, check that there is another visual indicator together with programmatic or text information that conveys the same information (e.g., use “green checkmarks” and “red crosses” instead of just “red” and “green” indicators) </script></mark-down> <!-- End main panel --> <!-- This is where the rule id is injected --> <div id="ruleInfo"></div> </div> <div class="bx--col-sm-4 bx--col-md-3 bx--col-lg-4 toolSide"> <!-- Start side panel --> <mark-down><script type="text/plain"> ### About this requirement * [IBM 1.4.1 Use of color](https://www.ibm.com/able/requirements/requirements/#1_4_1) ### Who does this affect? * People who cannot see color, have limited color vision, or have color blindness * People using text-only, monochrome, or Braille displays * People who personalize their display colors for easier reading </script></mark-down> <!-- End side panel --> </div> </div> </div> </body> </html>