Hi,
Sometimes I’m confronted with the issue that the links in the posts of this forum aren’t underlined. The links can be hardly visible or just not visible [because of their minimal color difference in respect to the normal text *)], especially:
- in case the visitor has a strong incoming light on his/her monitor,
- in case the visitor has diminished the contrast and/or brightness in the monitor settings (to save headache in pure black/white web pages),
- in case the visitor has a laptop which doesn’t have the right screen inclination,
- in case the visitor has not the optimal contrast perception; about 40% of the visitors haven’t! **)
- in case the visitor is color blind (mostly red/green).
- in case of combination of these factors.
[CENTER]
Used: [U]colorfilter.wickline.org[/U][/CENTER]
So I guess I’m not the only one who is missing links in the forum (sometimes I see that people are asking for a link which is already posted earlier).
But we don’t know how much links are missed. Who is missing a link, doesn’t ask for it (only when the link is mentioned elsewhere in the text)!
Conclusion: the not underlined links reduce heavenly the user friendliness and accessibility of the forum.
- For a part of the visitors the accessibility is almost 0; they have to mouse over all text to see if the hand pointer is popping up.
- Using the Tab key to jump from link to link is also made impossible (the outline dots are styled away @focus, so you don’t know where you are).
- Means also: visitors without the possibility to use the mouse cannot profit of the forum.
All this is diametrically opposed to the essential WCAG standards ([U]Web Content Accessibility Guidelines[/U]):
- [U]1.4.1 Use of Color[/U]: [I]Color is not used as the only visual means[/I] of conveying information, indicating an action, prompting a response, or [I]distinguishing a visual element[/I]. (Level A) - See [URL=“http://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast-without-color.html”][U]explication[/U].
- [U]1.4.3 Contrast (Minimum)[/U]: The visual presentation of text and images of text has a contrast ratio of at least 4.5:1. (Level AA). - See [URL=“http://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast-without-color.html”][U]explication[/U].
- [U]1.4.6 Contrast (Enhanced)[/U]: The visual presentation of text and images of text has a contrast ratio of at least 7:1 (Level AAA). - See [URL=“http://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast7.html”][U]explication[/U].
- [U]2.1.1 Keyboard[/U]: [I]All functionality of the content is operable through a keyboard interface[/I] […] (level A). - See [URL=“http://www.w3.org/TR/UNDERSTANDING-WCAG20/keyboard-operation-keyboard-operable.html”][U]explanation[/U].
- [U]2.4.7 Focus Visible[/U]: Any keyboard operable user interface has a mode of operation where the keyboard focus indicator is visible. (Level AA). - See [URL=“http://www.w3.org/TR/UNDERSTANDING-WCAG20/navigation-mechanisms-focus-visible.html”][U]explanation[/U], and this site: [URL=“http://www.outlinenone.com/”][U]www.outlinenone.com[/U] !
- See also the article [U]Colour Choices on Web Pages: Contrast vs Readability[/U]
Maybe it is not too easy to realize this in the used forum technology, but I hope you can pay attention to these accessibility issues.
BTW: the underlining of all the links in this post I did by hand!
Francky
*) Tested with the [U]Contrast Analyser[/U]:
- The contrast ratio text/background as such is o.k. (10,3:1).
- The contrast ratio link/background as such is just sufficient (4.8:1).
- But the color difference text/link is 208 (the threshold is 500).
- And the brightness difference text/link is 32 (the threshold is 125).
**) Depending of the demographics of the country.
“The amount of light that the eye of a 60-year-old can see is only 1/3 of the amount of a 20-year-old.” ([U]Source[/U], in Google-translate English).
This means: for people between 20 and 60 years the contrast power is somewhere between 100% and 33%. Quite a difference! Above 60 that is going on (70 years old: about 12.5%…).