{"id":2856,"date":"2025-11-18T10:22:25","date_gmt":"2025-11-18T15:22:25","guid":{"rendered":"https:\/\/it.rutgers.edu\/digital-accessibility\/?page_id=2856"},"modified":"2026-01-07T09:59:08","modified_gmt":"2026-01-07T14:59:08","slug":"non-color-indicators","status":"publish","type":"page","link":"https:\/\/it.rutgers.edu\/digital-accessibility\/accessible-web-content\/non-color-indicators\/","title":{"rendered":"Non-color indicators"},"content":{"rendered":"    <section class=\"cc--component-container cc--hero-basic  hero-basic color-light-gray\">\n\n<div class=\"c--component c--hero-basic\">\n        \n<div class=\"outer-wrapper\">\n    <div class=\"inner-wrapper\">\n        <div class=\"text-container\">\n            <div class=\"text-wrapper\">\n\t\t\t\t<div class=\"f--field f--page-title \"><h1>Non-color indicators<\/h1>\n\n<\/div><!-- f--field f--page-title -->\n\t\t\t\t<div class=\"f--field f--text \"><\/div><!-- f--field f--text -->\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n\n<\/div><!-- c--component c--hero-basic -->\n\n    <\/section><!-- cc--component-container cc--section -->\n\n\n    <section class=\"cc--component-container cc--rich-text  rich-text\">\n\n<div class=\"c--component c--rich-text\">\n        \n    <div class=\"f--field f--rich-text \"><h2><strong>Alternatives to color to convey meaning<\/strong><\/h2>\n<p>It is important that you are not using color alone to convey meaning. This can be done through the use of styling (like underlining links), use of patterns, and the addition of text to describe intent.<\/p>\n<h2><strong>Appropriate use<\/strong><\/h2>\n<p><strong>Use of text to convey meaning<\/strong>: Below we use color and text to signify dates with available tickets.<\/p>\n<div id=\"footable_parent_2972\"\n         class=\" footable_parent ninja_table_wrapper loading_ninja_table wp_table_data_press_parent semantic_ui \">\n                <table data-ninja_table_instance=\"ninja_table_instance_0\" data-footable_id=\"2972\" data-filter-delay=\"1000\" aria-label=\"Alternatives to color\"            id=\"footable_2972\"\n           data-unique_identifier=\"ninja_table_unique_id_1448550880_2972\"\n           class=\" foo-table ninja_footable foo_table_2972 ninja_table_unique_id_1448550880_2972 ui table  nt_type_legacy_table selectable striped vertical_centered  footable-paging-right ninja_table_search_disabled ninja_table_pro\">\n                <colgroup>\n                            <col class=\"ninja_column_0 \">\n                            <col class=\"ninja_column_1 \">\n                            <col class=\"ninja_column_2 \">\n                    <\/colgroup>\n        <thead>\n<tr class=\"footable-header\">\n                                                        <th scope=\"col\"  class=\"ninja_column_0 ninja_clmn_nm_status \">Status<\/th><th scope=\"col\"  class=\"ninja_column_1 ninja_clmn_nm_event_date \">Event date<\/th><th scope=\"col\"  class=\"ninja_column_2 ninja_clmn_nm_description \">Description<\/th><\/tr>\n<\/thead>\n<tbody>\n\n        <tr data-row_id=\"1\" class=\"ninja_table_row_0 nt_row_id_1\">\n            <td><span style=\"color: #ff0000;\">Closed<\/span><\/td><td>9\/21\/25<\/td><td>Team A vs Team B<\/td>        <\/tr>\n            <tr data-row_id=\"2\" class=\"ninja_table_row_1 nt_row_id_2\">\n            <td><span style=\"color: #008000;\">Open<\/span><\/td><td>9\/27\/25<\/td><td>Team A vs Team C<\/td>        <\/tr>\n    <\/tbody><!--ninja_tobody_rendering_done-->\n    <\/table>\n    \n    \n    \n<\/div>\n\n<p><strong>Accessible links<\/strong>: We cannot use color alone to convey meaning, and that includes indicating to your users that the text is a link with color only. The easiest way to achieve this is by underlining your links.<\/p>\n<p>Below are the WCAG requirements:<\/p>\n<ul>\n<li>A non-color indicator, such as an underline, must be present on hover.<\/li>\n<li>The contrast ratio between the surrounding text and the background must be at least 4.5:1.<\/li>\n<li>The contrast ratio between the link and the background must be at least 4.5:1.<\/li>\n<li>The contrast ratio between the link and the surrounding text must be at least 3:1.<\/li>\n<\/ul>\n<h2><strong>How to test for compliance<\/strong><\/h2>\n<p>We recommend using an automated checker like WebAIM\u2019s\u00a0<a href=\"https:\/\/wave.webaim.org\/\">WAVE Browser extension<\/a>. This is available for Chrome, Firefox, and Edge browsers. When you click on the plug-in, an overlay will appear with all of your issues.<\/p>\n<p>You may have to manually check images with text as these will not be scanned with the automated checker.<\/p>\n<h2><strong>Common mistakes<\/strong><\/h2>\n<p><strong>Using color in images to convey meaning<\/strong>: A common mistake we see are images that use color alone to convey meaning. This could include bar charts or other graphics. Consider the use of patterns in addition to the use of color.<br \/>\n<strong>Color contrast of text in images<\/strong>: If there is text on top of an image, please use WebAim\u2019s Color Contrast Checker to manually check that the color of the text meets standards. In some cases, you may need to check multiple places on the image.<\/p>\n<p>Please note, automated checkers will not pick up this issue. You will need to manually check these items. We recommend that you avoid using text on top of images.<\/p>\n<h2><strong>Other resources<\/strong><\/h2>\n<ul>\n<li><a href=\"https:\/\/www.w3.org\/WAI\/perspective-videos\/contrast\/\">W3C- Colors with Good Contrast<br \/>\n<\/a><\/li>\n<\/ul>\n<h2><strong>WCAG standards<\/strong><\/h2>\n<ul>\n<li><a href=\"https:\/\/www.w3.org\/WAI\/WCAG21\/quickref\/#qr-text-equiv-all\">1.1.1 Non-text Content<\/a><\/li>\n<li><a href=\"https:\/\/www.w3.org\/WAI\/WCAG21\/Understanding\/contrast-minimum\">1.4.3 Contrast (Minimum)<\/a><\/li>\n<\/ul>\n<\/div><!-- f--field f--rich-text -->\n\n    <\/div><!-- c--component c--rich-text -->\n\n    <\/section><!-- cc--component-container cc--section -->\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":257,"featured_media":0,"parent":2827,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"template-mini-site.php","meta":{"_acf_changed":false,"footnotes":""},"page-category":[],"class_list":["post-2856","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - 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