Color blind user

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Color blind user

  1. 1. Web Design for Color BlindUsers
  2. 2. IntroductionColor BlindnessWhy should we consider this issue?How can we create a assessable site for the colorblind?Examples of websitesConclusionsQ & AREFERENCES
  3. 3. Color blindness is inability to perceive differences between some of the colorsHereditary genetic disorder 8 to 10 % men & 0.5 % women
  4. 4.  Primary (Red, Green, Blue) colors What are the primary colors ? By mixing together various amounts of red, green and blue light, you can make almost any color. The most common examples of this are television screens and computer monitors.
  5. 5. Types color blindness Monochromacy • Rod monochromacy (Achromatopsia) • Cone monochromacy Dichromacy • Protanopia • Deuteronopia • Tritanopia Trichromacy • Protanomaly • Deuteranomaly • Tritanomaly
  6. 6.  Web site accessible A high percentage of users  Ranked well with the search engines professional Targeting smartphones, and similar technological devices
  7. 7.  Testing1- Test 1 Test 22- Color Scheme Designer3- Test the Image4- Colorblind Web Page Filter
  8. 8. Good Examples  Google  Humble Indie Bundle
  9. 9. Bad Examples  www.bbc.co.uk/sport/football/tables  www.google.ca/analytics
  10. 10.  Good Color CombinationsBad Color Combinations
  11. 11. Graphs and Maps  
  12. 12. BottomColor Name 
  13. 13. Color blindness is inability to distinguish among somecolor combinations. colorblind about 8-10% of males and 0.5%of females, so it is common enough to be an important factor ina high degree of design. The color combinations red-green colorblindness is the most common, followed by color blindness,yellow and blue. To avoid problems for users with color blindness, makesure that the distinctive color objects. Using variations inbrightness to make the colored areas distinct, and test yourinterfaces in some website has special tool and grayscale toconfirm that they are still usable.
  14. 14. WIKI Link : https://dal.ca.campuspack.net/Groups/CSCI_6606_-_Human_Factors_in_On-Line_Information_Systems_-_2013/Seminar_Presentations_-_CSCI_6606/Color_Blindness_and_Web_site
  15. 15.  Berson EL. Visual function testing: clinical correlations. In: Tasman W, Jaeger EA, eds. Duanes Foundations of Clinical Ophthalmology 15th ed. Philadelphia, Pa: Lippincott Williams & Wilkins; 2009:chap 14. Brettel, H., Vienot, F. & Mollon, J.D. (1997). Computerized simulation of color appearance for dichormats. Journal of the Optical Society of American A, 14, 10. 2647-2655. Newman, Chuck (2000). Considering the Color-Blind. Web Techniques. Parise, Mario (2005). Color Theory for the Color-Blind. Digital Web Magazine. 

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