Colour Pallette Resources

Christine Rigden's Safe Web colours for colour-deficient Vision

• Choosing safe colours: Choosing colours for a web site is made more complex if one takes into consideration the needs of colour-deficient users.
  • http://www.btexact.com/colours
  • http://more.btexact.com/people/rigdence/colours/
  • http://more.btexact.com/people/rigdence/colours/ColChoice.htm

• Figure 3 - Example palettes: Sample selection of 10 distinguishable colours
  • http://more.btexact.com/people/rigdence/colours/ColChoice.htm#examples

• Simple schemes: "The simplest approach to selecting a colour scheme is to limit oneself to only 3 or 4 colours (in addition to black and white), using a primarily monochromatic scheme."
  • http://more.btexact.com/people/rigdence/colours/ColChoice.htm#simple

• Grouped colour palette: "The web-safe palette has been divided here into two colour groups, according to the main confusion groups of colour-blind users."
  • http://more.btexact.com/people/rigdence/colours/ColChoice.htm#grouped

• Colour Confusion (Normal, Protanopia, Deutanopia, Tritanoptia)
  • Colours confused with neutrals (Decimal): http://more.btexact.com/people/rigdence/colours/neutrals_dec.html
  • Colours confused with yellow (Decimal): http://more.btexact.com/people/rigdence/colours/yellows_dec.html
  • Colours confused with blue (Decimal): http://more.btexact.com/people/rigdence/colours/blues_dec.html
  • Colour transformations - Decimal: http://more.btexact.com/people/rigdence/colours/colours1.html

Colour Pallette Resources

VisiBone Color Lab (You can learn it. You can use it. But first you gotta see it.)

• Alternative selection palette: "Bob Stein has created an interactive version of the web-safe palette, allowing one to select a number of colours to see how they work together as areas and with text. When translated to the protan and deutan versions, it offers a very clear comparison of the colour groupings and probable confusions."
  • http://more.btexact.com/people/rigdence/colours/ColChoice.htm#Alternative

  • VisiBone Color Lab: http://www.visibone.com/colorlab/

  • VisiBone Colour Card: http://www.visibone.com/color/

  • VisiBone Color Deficient Vision Card: http://www.visibone.com/colorblind/

Testing for Colour Blindness

• Links found via:
  • http://www.visibone.com/colorblind/

• Ishihara Test for Color Blindness, by Dr. Shinobu Ishihara.
  • http://www.toledo-bend.com/colorblind/Ishihara.html

• Color Vision Testing Made Easy, by Dr. Terrace Waggoner, distributed by Bernell.
  • http://members.aol.com/protanope/colorblindtest.html

• Professor Holmgren’s Test For Color Blindness "This test uses colored wools" (including history of this test and original research into colour blindness including the relevance of the railway accident at Lagerlunda, Sweden, in 1876.)
  • http://www.psych.utoronto.ca/museum/holmgren.htm

Other Links

• The Browser-Safe Color Palette
  • http://www.lynda.com/hex.html

• Colour Vision / Colour Deficiency
  • http://www.lava.net/~dewilson/web/color.html

• Colour Blindness FAQ: Colour Blindness and it's Effects on Amature Astronomy
  • At http://www.multiboard.com/~joneil/colour.html

• Colour Blindness and HTML Link Colours
  • At http://www.washington.edu/doit/Resources/color.blind.html

• The Human Side of Colour Blindness : (or Color Blind or Color-Deficient)
  • At http://www.multiboard.com/~joneil/colour2.htm

• St Vincent's School for Blind and Partially Sighted Children (Yew Tree Lane, West Derby Liverpool L12 9HN)
  • At http://ourworld.compuserve.com/homepages/STVINCENTS/homepage.htm

• Webring: Organisations, Schools and Services for Blind and Partially Sighted People - list of sites
  • At http://www.webring.org/cgi-bin/webring?ring=visimp;list