Colour Contrast Analyser

Figura 1
Colour Contrast Analyser interface image

Colour Contrast Analyser is primarily a tool for checking foreground & background colour combinations to determine if they provide good colour visibility. It also contains functionality to create simulations of certain visual conditions such as colour blindness. The contrast ratio helps determine whether or not the contrast between two colours can be read by people with colour blindness or other visual impairments. The Colour Contrast Analyser is compatible with the Web Content Accessibility Guidelines version 2 (WCAG 2.0). The tool was developed by JUn of the Web Accessibility Tools Consortium in collaboration with Vision Australia and Steve Faulkner of The Paciello Group (Europe).

Source: Corporate website

Product identification
Modelo/Versión D8 / 2.3
Clasificación ISO
Information source
Website of the entity

Product versions
The table shows the software updates The first column shows the name of the version and the second column shows the date the version was published.
Name Published
Colour Contrast Analyser For Windows
Colour Contrast Analyser 2.3 For OSX

This tool provides two useful core functionalities:

  1. a pass/fail assessment against WCAG 2.0 color contrast success criteria
  2. a simulation of certain visual conditions, including dichromatic color-blindness and cataracts, to demonstrate how your web content appears to people with less than 20/20 vision
Specifications / Requirements
Operating system
Mac OS X
Windows 2000
Windows XP
Windows 7
Windows 8
Microsoft Windows
Other languages
WCAG 2.0
Comments / Specifications / Additional Requirements
  • Languages OSX: English, French
  • The visual simulation functionality is only available in the Windows version.
Commercial information
GNU General Public License
Distribution method

Sellers / Distributors of Colour Contrast Analyser

Entities that distribute the product
Table of entities that sell or distribute the product In the first column the name of the suppliers is shown, in the second "Territory" the countries where they are commercialized, in the third if it is sold by electronic commerce, in the fourth face-to-face sale and the fifth sale on request (telephone, form, mail etc.)
Entity Country E-commerce Physical Store Tele-commerce
The Paciello Group Internet, United Kingdom
Web Accessibility Tools Consortium (WAT-C) Internet, Australia, USA, Japan