WCAG 2.0 Comment Submission

Name: Greg Gay
Email: g.gay@utoronto.ca
Affiliation: ATRC UofT
Document: W2
Item Number: Success Criterion 1.4.3
Part of Item: 
Comment Type: TE
Comment (Including rationale for any proposed change):
As suggested for 1.4.1, Luminosity Contrast Ratio in its current form appears to be a less than perfect measure of contrast. For example black text on a white background is more readable than white text on a black background, yet both have the same ratio.  In the future as the algorithms for measuring contrast become better, the suggested 10:1 ratio in 1.4.1, may no longer be valid. 

Proposed Change:
A general statement should be made in the guideline, something like ...use foreground and background colours that provide *high* contrast...\", and move LCR and the suggested ratio to the techniques document, where it can be adjusted as measure of contrast become better defined. 

Received on Thursday, 11 May 2006 20:04:26 UTC