Colour contrast
type: TechArticle
description: Text and meaningful non-text elements must have enough contrast against their background so people with low vision and people in harsh light can read them.
language: en
is part of: Web Specification Studio
author: Web Specification Studio
publisher: Web Specification Studio
license: https://creativecommons.org/licenses/by/4.0/
date modified: 2026-07-09T00:00:00.000Z
citation: WCAG 1.4.3 — Contrast (Minimum) (Level AA)
  type: CreativeWork
  publisher: W3C
citation: WCAG 1.4.6 — Contrast (Enhanced) (Level AAA)
  type: CreativeWork
  publisher: W3C
citation: WCAG 1.4.11 — Non-text Contrast (Level AA)
  type: CreativeWork
  publisher: W3C
citation: Accessibility Checker — Low Contrast
  type: CreativeWork
  publisher: Equalize Digital

Web Specification Studio
type: WebSite

Web Specification Studio
type: Organization

breadcrumb
type: BreadcrumbList
item list element: Home
  type: ListItem
  position: 1
  item: https://webspecification.com/
item list element: Spec
  type: ListItem
  position: 2
  item: https://webspecification.com/spec/
item list element: Accessibility
  type: ListItem
  position: 3
  item: https://webspecification.com/spec/accessibility/
item list element: Colour contrast
  type: ListItem
  position: 4
  item: https://webspecification.com/spec/accessibility/color-contrast/