Search results
17 packages found
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.
Library for converting colour codes and manipulating relative luminance and contrast ratio
- colour
- color
- contrast
- contrast ratio
- luminance
- lightness
- brightness
- saturation
- hue
- chroma
- chromator
- colour conversion
Evaluate if a to colors have sufficient contrast to pass WCAG requirements.
- wcag
- color
- contrast
- luminance
- contrast-ratio
- accessibility
- a11y
- relative-luminance
- color-contrast
- text-legibility
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
Evaluate if a to colors have sufficient contrast to pass WCAG requirements.
- wcag
- color
- contrast
- luminance
- contrast-ratio
- accessibility
- a11y
- relative-luminance
- color-contrast
- text-legibility
Calculate the color in an array of colors that gives the highest contrast to another color.
A package based on WCAG 2.0 to easily check contrast ratio.
See Stars • a lightweight set of utilities to take an sRGB or displayP3 color, and extract the CIE Y relative luminance, and then convert to CIE L* (perceptual lightness). Takes RGB colors as simple arrays (as created with colorParsley). Bonus utilities t
Get relative luminance from a color string.
Utility functions for working with colors in adherence to WCAG 2.1 guidelines.
- wcag
- wcag-2.1
- accessibility
- accessible
- color
- colors
- contrast
- contrast-ratio
- luminance
- luminosity
- suggestion
- generator
Allows you to control Hue, Saturation, and Relative Luminance as if it where a color space. Inputs are the Hue, Saturation, and Relative Luminance of a color, and output is an array of RGB values ranging from 0 to 1, 0 to 255, and a string containing the
Calculate contrast ratio between two CSS color strings.
helper function for WCAG contrast criterion
Compare colors to one another. Especially useful for validating color input fields.
For a given color, find a contrasting color (not optimal).
SafeColor generates accessible colors that compiles with WCAG success criteria 1.4.3 (or any contrast ratio of your choice). It can generate either a random color that is contrast safe with a given color, or a consistent color for a given string.
Helps to determine what color of text goes best for a given background, light or dark (and vice versa).