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.
css
color
web
accessibility
srgb
contrast
vision
wcag
readability
colorimetry
color-contrast
luminance
color-theory
color-contrast-checker
wcag-contrast
color-models
cieluv
contrast-calculator
apca
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Updated
May 28, 2024 - CSS