apca-w3

APCA: the Accessible Perceptual Contrast Algorithm, a modern contrast method that improves readability contrast on self-illuminated displays. Developed for the W3C's WCAG 3 and other standards.

v0.1.9 URL: https://unpkg.com/apca-w3@0.1.9/src/apca-w3.js

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apcach

JS color calculator for composing colors with consistent APCA contrast ratio

v0.6.4 URL: https://unpkg.com/apcach@0.6.4/index.js

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A11y Accessibility APCA Colors Composer Contrast OKLCH

@umbrajs/core

Umbra is a theme managment library that allows you to create semantic color themes that are easy to dynamically customize, change retroactively and scale progressively

v0.0.456 URL: https://unpkg.com/@umbrajs/core@0.0.456/index.umd.cjs

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colors colours themes theming umbra customization APCA

bridge-pca

A Bridge for WCAG_2 contrast using APCA (Advanced Perceptual Contrast Algorithm), technology.

v0.1.6 URL: https://unpkg.com/bridge-pca@0.1.6/src/bridge-pca.js

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color colour CSS contrast design tools WCAG APCA accessibility readability

deltaphistar

Delta Phi Star is a general purpose method of determining perceptual lightness contrast developed by Andrew Somers (Myndex Research), and is a sibling of APCA and SACAM. It is a simplified method using easily invertible standardized maths, however it lack

v0.0.1 URL: https://unpkg.com/deltaphistar@0.0.1/src/deltaphistar.js

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