CSS Accessibility

Open-source CSS projects categorized as Accessibility
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Top 6 CSS Accessibility Projects

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Accessibility

  1. hint.css

    A CSS only tooltip library for your lovely websites.

  2. Kargo

    Stop Scripting Promotions. Start Shipping with Kargo. Kargo automates promotion across dev, staging, and prod with approval gates and verification. Open source, built by the team behind Argo CD. Download now.

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  3. microtip

    đź’¬ Minimal, accessible, ultra lightweight css tooltip library. Just 1kb.

  4. SAPC-APCA

    APCA (Accessible Perceptual Contrast Algorithm) is a new method for predicting contrast for use in emerging web standards (WCAG 3) for determining readability contrast. APCA is derived form the SAPC (S-LUV Advanced Predictive Color) which is an accessibility-oriented color appearance model designed for self-illuminated displays.

    Project mention: Rebuilding BICO v3.0.0 from scratch: worker threads, GPU shaders, and a contrast formula that got it wrong | dev.to | 2026-08-15

    APCA, the perceptual model drafted for WCAG 3, gets it right:

  5. toggle-switchy

    CSS toggle switch for checkbox inputs. No JavaScript, no dependencies, one stylesheet under 8KB. Five sizes, seven colors, rounded or square, optional ON/OFF text, labels left or right. Keyboard accessible with visible focus styles, and every selector is scoped so it will not touch the rest of your CSS.

  6. fieber

    Classless and accessible CSS framework

  7. base16-measured-scheme

    Base16 colour schemes from Measured, with accessible colour contrast.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

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CSS Accessibility related posts

  • Show HN: A minimalist (brutalist?) website for sharing all your links

    4 projects | news.ycombinator.com | 2 Nov 2024

  • Japanese Hover Over

    1 project | /r/Anki | 15 Oct 2023

  • Hint.css: crea botones con infografĂ­as para tu sitio web

    1 project | /r/fazt | 29 Jul 2021

Index

What are some of the best open-source Accessibility projects in CSS? This list will help you:

# Project Stars
1 hint.css 8,442
2 microtip 1,400
3 SAPC-APCA 584
4 toggle-switchy 46
5 fieber 19
6 base16-measured-scheme 14

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Did you know that CSS is
the 20th most popular programming language
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