These are the evaluation questions associated with this checkpoint, followed by the evaluation tool/method used to answer the question.

1. Must repair: Is information conveyed by color also conveyed by context, markup, graphic coding, or other means? (fix if "no")
   
   
   • Visual inspection
     
     
2. Must repair: Does the contrast between foreground and background colors have a luminosity contrast ratio of least 5:1 for both normal vision and color blindness? (fix if "no")
   
   
   • Internet Explorer / AIS: Colour  -> Colour Contrast Analyser : check all foreground/background combinations for sufficient contrast for sighted and color-blind users
     
     
   • Internet Explorer / AIS: Colour  -> Juicy Studio Colour Contrast Analyser -> Contrast Analyser -> all test [new window] : check the page in each simulation of visual disabilities

Best practice: 10:1. (fix if "no")

• Internet Explorer / AIS: Colour  -> Colour Contrast Analyser : check all foreground/background combinations for sufficient contrast for sighted and color-blind users
  
  
• Internet Explorer / AIS: Colour  -> Juicy Studio Colour Contrast Analyser -> Contrast Analyser -> all test [ new window] : check the page in each simulation of visual disabilities

 

Best practice: Is a correct contrast ratio maintained when images are not available? (fix if "no")

• Firefox/developer: Images -> Disable Images -> All Images