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Oct 17, 2013, 13:08 #1
- Join Date
- Jul 2013
- 22 Post(s)
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Non underlined / outlined links are giving problems
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.
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 (Web Content Accessibility Guidelines):
- 1.4.1 Use of Color: Color is not used as the only visual means of conveying information, indicating an action, prompting a response, or distinguishing a visual element. (Level A) - See explication.
- 1.4.3 Contrast (Minimum): The visual presentation of text and images of text has a contrast ratio of at least 4.5:1. (Level AA). - See explication.
- 1.4.6 Contrast (Enhanced): The visual presentation of text and images of text has a contrast ratio of at least 7:1 (Level AAA). - See explication.
- 2.1.1 Keyboard: All functionality of the content is operable through a keyboard interface [...] (level A). - See explanation.
- 2.4.7 Focus Visible: Any keyboard operable user interface has a mode of operation where the keyboard focus indicator is visible. (Level AA). - See explanation, and this site: www.outlinenone.com !
- See also the article Colour Choices on Web Pages: Contrast vs Readability
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!
*) Tested with the Contrast Analyser:
- 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." (Source, 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%...).