fiskeben

This plugin adds a simple way to let your readers enable or disable a high contrast stylesheet for the visually impaired.
Once a reader enables the high contrast stylesheet the setting will be stored in a cookie which means the setting will not only stay one when navigating to other pages but it will also be on when the reader returns.

Vividly

Enables toggling an extra stylesheet with high contrast CSS for visually impaired users.

wppluginisle

Lightweight, professional accessibility toolbar to help your website meet WCAG standards with ease.
PI Accessibility Toolbar offers a comprehensive suite of tools to improve website usability for all visitors. This plugin integrates seamlessly into any WordPress theme, providing essential accessibility features without bloat.
<h4>Key Features</h4>
<ul>
<li>Contrast Adjustments: Invert colors, Monochrome mode, Dark Contrast, Light Contrast, Low and High Saturation.</li>
<li>Text Customization: Dynamic Font Size, Line Height, and Letter Spacing adjustments.</li>
<li>Navigation Tools: “Skip Links” for keyboard users and high-visibility focus management.</li>
<li>Visual Aids: Highlight links and “Read Mode” to remove distracting backgrounds/sidebars.</li>
<li>Responsive Design: Works seamlessly on desktops, tablets, and mobile devices.</li>
<li>Admin Customization: Change toolbar colors (background, text, accent) and toggle specific features via a simple settings page.</li>
</ul>

PI Accessibility Toolbar

Lightweight, professional accessibility toolbar to help your website meet WCAG standards with ease.

Vividly vs PI Accessibility Toolbar