WCAG Color contrast checkerとは何ですか？

WCAG Color contrast checkerはJorge Rumorosoによって開発されたChromeの拡張機能で、その主な機能は「To check the color contrast between foreground and background of the texts」です。

拡張機能のスクリーンショット

WCAG Color contrast checker拡張機能のCRXファイルをダウンロード

WCAG Color contrast checker拡張子のファイルをcrx形式でダウンロードし、ブラウザにChrome拡張機能を手動でインストールするか、crxファイルを友達と共有して簡単にChrome拡張機能をインストールします。

拡張機能の使用方法

It checks the color contrast between the foreground and background of the elements that are in the page according to the WCAG 2.2.

It evaluates the contrast on all elements of the page considering their computed style for the color and background-color CSS properties. In case of these colors are defined with RGBA values, it also considers the opacity to deduce the real color that finally is show.

It can simulate color blindness and evaluate the contrast for the simulations. By this way, developers can see how the pages look for colorblind users.

The tool also includes two fields in which the colors can be introduced manually to be tested. It also allows to pick the color directly from the documents.

Finally, it auto-refreshes when DOM of the page changes (addition or removing elements), but if the page has many changes, this behavior can be de-activated.

Privacy statement on: https://rumoroso.bitbucket.io/

拡張機能の基本情報

名前	WCAG Color contrast checker
ID	plnahcmalebffmaghcpcmpaciebdhgdf
公式URL	https://chromewebstore.google.com/detail/wcag-color-contrast-check/plnahcmalebffmaghcpcmpaciebdhgdf
説明	To check the color contrast between foreground and background of the texts
ファイルサイズ	163 KB
インストール数	61,408
現在のバージョン	3.8.4
最終更新日	2024-03-03
公開日	2020-06-26
評価	4.05/5 合計 20 レビュー
開発者	Jorge Rumoroso
Eメール	[email protected]
支払い方法	free
対応言語	en
manifest.json
{ "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx", "name": "__MSG_extensionName__", "description": "__MSG_extensionDescription__", "author": "Jorge Rumoroso", "manifest_version": 3, "version": "3.8.4", "icons": { "48": "icons\/icon_large.png", "96": "icons\/icon_large_96x96.png", "128": "icons\/icon128_with_margin.png" }, "default_locale": "en", "content_scripts": [ { "matches": [ "" ], "js": [ "content_scripts\/contrastChecker.js" ], "css": [ "css\/inDocumentStyles.css" ], "run_at": "document_end", "all_frames": true } ], "background": { "service_worker": "service-worker.js" }, "permissions": [ "activeTab", "storage", "webNavigation" ], "host_permissions": [ "" ], "action": { "default_icon": { "32": "icons\/icon_overlay.png" }, "default_title": "WCAG Color contrast checker" }, "web_accessible_resources": [ { "resources": [ "html\/", "css\/", "getFrameId", "_locales\/*" ], "matches": [ "" ], "extension_ids": [] } ] }