koeln.ccc.de

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 3:1, but text in this element has a contrast ratio of 2.57:1. Recommendation: change text colour to #ef7006.

Selector: html > body > main > header > div:nth-child(1) > div:nth-child(2) > h1 > a:nth-child(1)

Kontext: <a href="/" class="d-none d-md-inline">Chaos Computer Club&nbsp;Cologn...</a>

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 2.57:1. Recommendation: change text colour to #c15800.

Selector: #content > div:nth-child(2) > table > tbody > tr:nth-child(1) > td:nth-child(2) > a

Kontext: <a href="https://koeln.ccc.de/c4/veranstaltungen.xml#offener_abend">Offener Abend</a>

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 2.57:1. Recommendation: change text colour to #c15800.

Selector: #content > div:nth-child(2) > table > tbody > tr:nth-child(2) > td:nth-child(2) > a

Kontext: <a href="/c4/veranstaltungen.xml#diday">Digital Independence Day im C4</a>

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 2.57:1. Recommendation: change text colour to #c15800.

Selector: #content > div:nth-child(2) > table > tbody > tr:nth-child(3) > td:nth-child(2) > a

Kontext: <a href="https://rust.cologne/">Rust User Group Cologne</a>

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 2.57:1. Recommendation: change text colour to #c15800.

Selector: #content > div:nth-child(2) > table > tbody > tr:nth-child(4) > td:nth-child(2) > a

Kontext: <a href="https://sonoj.org/koeln/">Kölner Sonoj-Treffen</a>

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 2.57:1. Recommendation: change text colour to #c15800.

Selector: #content > div:nth-child(2) > table > tbody > tr:nth-child(5) > td:nth-child(2) > a

Kontext: <a href="https://koeln.ccc.de/c4/veranstaltungen.xml#nixcgn">Nix Meetup Köln</a>

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 3:1, but text in this element has a contrast ratio of 2.57:1. Recommendation: change text colour to #ef7006.

Selector: #content > h4 > a

Kontext: <a href="updates/index.html">Letzte Meldungen Chaos Computer...</a>

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 2.44:1. Recommendation: change text colour to #3e1c00.

Selector: #content > div:nth-child(4) > div > p > a

Kontext: <a href="/updates/2026-06-11_OC_kyrill.html" class="small"> more </a>

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 2.57:1. Recommendation: change text colour to #c15800.

Selector: #content > div:nth-child(5) > div > p > a

Kontext: <a href="/updates/2026-06-10_matrix_meetup.html" class="small"> more </a>

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 2.57:1. Recommendation: change text colour to #c15800.

Selector: #content > div:nth-child(6) > div > p > a

Kontext: <a href="/updates/2026-04-30_Chaos_trifft_die_FAU.html" class="small"> more </a>

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 2.57:1. Recommendation: change text colour to #c15800.

Selector: #content > div:nth-child(7) > div > p > a

Kontext: <a href="/updates/2026-05-30_u23_2026.html" class="small"> more </a>

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 2.57:1. Recommendation: change text colour to #c15800.

Selector: #content > div:nth-child(8) > div > p > a

Kontext: <a href="/updates/2026-04-15_SOC_Revision_Nachlese.html" class="small"> more </a>

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 2.57:1. Recommendation: change text colour to #c15800.

Selector: #content > div:nth-child(9) > div > p > a

Kontext: <a href="/updates/2026-03-28_TdoH.html" class="small"> more </a>

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 2.57:1. Recommendation: change text colour to #c15800.

Selector: html > body > main > div > div:nth-child(2) > div:nth-child(7) > b > a

Kontext: <a href="mailto:mail@koeln.ccc.de">mail@koeln.ccc.de</a>

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 2.57:1. Recommendation: change text colour to #c15800.

Selector: html > body > main > div > div:nth-child(2) > table > tbody > tr:nth-child(1) > td:nth-child(2) > b > a:nth-child(1)

Kontext: <a href="irc://irc.hackint.org/#cccc">#cccc auf hackint</a>

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 2.57:1. Recommendation: change text colour to #c15800.

Selector: html > body > main > div > div:nth-child(2) > table > tbody > tr:nth-child(1) > td:nth-child(2) > b > a:nth-child(2)

Kontext: <a href="https://chat.hackint.org/?join=cccc">web</a>

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 2.57:1. Recommendation: change text colour to #c15800.

Selector: html > body > main > div > div:nth-child(2) > table > tbody > tr:nth-child(2) > td:nth-child(2) > b > a

Kontext: <a href="https://matrix.to/#/#cccc:hackint.org">#cccc:hackint.org</a>

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 2.57:1. Recommendation: change text colour to #c15800.

Selector: html > body > main > div > div:nth-child(2) > div:nth-child(9) > a > b

Kontext: <b>F.A.Q.</b>

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 2.57:1. Recommendation: change text colour to #c15800.

Selector: html > body > main > div > div:nth-child(2) > div:nth-child(10) > div:nth-child(1) > a

Kontext: <a href="/impressum/privacy.xml">Datenschutz / Privacy Policy</a>

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 2.57:1. Recommendation: change text colour to #c15800.

Selector: html > body > main > div > div:nth-child(2) > div:nth-child(10) > div:nth-child(2) > a

Kontext: <a rel="me" href="https://chaos.social/@c4">Mastodon</a>

Originalmeldung: This textinput element does not have a name available to an accessibility API. Valid names are: label element, title , aria-label , aria-labelledby .

Selector: html > body > main > div > div:nth-child(2) > form > div > div:nth-child(1) > input:nth-child(1)

Kontext: <input maxlength="200" size="8" value="" placeholder="Suche" type="text" name="query" class="form-control-sm mb-2">

Originalmeldung: This form field should be labelled in some way. Use the label element (either with a "for" attribute or wrapped around the form field), or "title", "aria-label" or "aria-labelledby" attributes as appropriate.

Selector: html > body > main > div > div:nth-child(2) > form > div > div:nth-child(1) > input:nth-child(1)

Kontext: <input maxlength="200" size="8" value="" placeholder="Suche" type="text" name="query" class="form-control-sm mb-2">

Originalmeldung: The html element should have a lang or xml:lang attribute which describes the language of the document.

Selector: html

Kontext: <html xmlns="http://www.w3.org/1999/xhtml"><head><title>c4 | homepage</tit...</html>