W3C List of Evaluation Tools - Colour Contrast Analyser RDF entry

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         xmlns:dc="http://purl.org/dc/elements/1.1/"
         xmlns:dct="http://purl.org/dc/terms/"
         xmlns:tool="http://www.w3.org/WAI/ER/tools/schema#">

<earl:Software
rdf:ID="http://www.visionaustralia.org.au/info.aspx?page=628">
  <dc:title rdf:parseType="Literal">Colour Contrast Analyser</dc:title>
  <dc:creator rdf:parseType="Literal">Vision Australia & WAT-C</dc:creator>
  <dc:location
rdf:resource="http://www.visionaustralia.org.au/info.aspx?page=628"/>
  <dc:date
rdf:datatype="http://www.w3.org/2001/XMLSchema#gDate">2005-02-04</dc:date>
  <dct:hasVersion rdf:parseType="Literal">1.0</dc:creator>
    <tool:hasFeature
rdf:resource="http://www.w3.org/WAI/ER/tools/features.rdf#accessible"/>
    <tool:hasFeature
rdf:resource="http://www.w3.org/WAI/ER/tools/features.rdf#manual"/>
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rdf:resource="http://www.w3.org/WAI/ER/tools/features.rdf#report"/>
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rdf:resource="http://www.w3.org/WAI/ER/tools/features.rdf#transformation"/>
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rdf:resource="http://www.w3.org/WAI/ER/tools/features.rdf#windows"/>
    <tool:hasFeature
rdf:resource="http://www.w3.org/WAI/ER/tools/features.rdf#accessiweb"/>
    <tool:hasFeature
rdf:resource="http://www.w3.org/WAI/ER/tools/features.rdf#bitv"/>
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rdf:resource="http://www.w3.org/WAI/ER/tools/features.rdf#wcag10"/>
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rdf:resource="http://www.w3.org/WAI/ER/tools/features.rdf#freeware"/>
  <dc:description rdf:parseType="Literal" xml:lang="en">The Colour Contrast
Analyser is a tool for checking foreground & background colour combinations
to determine if they provide good colour visibility for conformance with
Checkpoint 2.2 of the Web Content Accessibility Guidelines 1.0. It
determines \"colour visibility\" based on algorithms suggested by the World
Wide Web Consortium (W3C) - \"Two colours are considered to provide good
colour visibility if the brightness difference and the colour difference
between the two colours are greater than a set range.\" The range suggested
by the W3C is > 125 for colour brightness and > 500 for colour difference.\"
In addition to analysing contrast for \"normal\" vision it also calculates
results for three types of colour blindness (Protanopia, Deuteranopia,
Tritanopia).
</dc:description>
</earl:Software>

</rdf:RDF>

_________________________________
Dr Andrew Arch
Manager Online Accessibility Consulting
Vision Australia - Accessible Information Solutions
454 Glenferrie Rd, Kooyong 3144, Australia
Ph +61 (0)3 9864 9282; Fax +61 (0)3 9864 9370; Mob 0438 755 565
http://www.accessibleinfo.org.au/ | http://www.visionaustralia.org.au/

Member, Education & Outreach Working Group,
W3C Web Accessibility Initiative
http://www.w3.org/WAI/EO/

Vision Australia was formed through the merger of the Royal Blind Society
NSW, the Royal Victorian Institute for the Blind, Vision Australia
Foundation and the National Information & Library Service.
ABN: 67 108 391 831  ACN: 108 391 831


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Received on Tuesday, 22 November 2005 00:17:37 UTC