Luminosity Brightness of Enabled/Disabled Form Controls using default browser styling

Standard HTML form controls. No styling -- default browser styling. Where
possible the darkest color was used for contrast determination. All borders
were 1 px, used 4.5:1 luminosity ratio as passing per WCAG 1.4.3. Used the
latest version of each browser. No access to Edge.

Used Color Contrast Analyser (
https://www.paciellogroup.com/resources/contrastanalyser/) on Windows and
Macintosh.

Results:

Only IE10 PASSED for borders on ENABLED form control - FF, CHROME, SAFARI
FAILED.

NO browser passed for disabled elements.
http://w3c.github.io/low-vision-SC/luminosity-form-controls.html

​http://w3c.github.io/low-vision-SC/luminosity-form-controls.html

related to:
https://www.w3.org/WAI/GL/low-vision-a11y-tf/wiki/Contrast_(Minimum)​

-- 
Jim Allan, Accessibility Coordinator
Texas School for the Blind and Visually Impaired
1100 W. 45th St., Austin, Texas 78756
voice 512.206.9315    fax: 512.206.9264  http://www.tsbvi.edu/
"We shape our tools and thereafter our tools shape us." McLuhan, 1964