Wave Giz Explains: How Blind People See The Internet Your eyes are absorbing this web page. They’re passing over this, this, then this word, right now. That’s how reading works, online: you take this for granted. But what if you couldn’t? We grant our gaze to electronic screens for most of the day, and in return they give us anything we want. And this makes sense! But for millions of others – those who are unable to see – the web is a wildly different place. The Sightless Internet The most common way for the vision-impaired user to access the internet is with a traditional browser and text-to-speech software. But to say that blind users just “hear” the internet is a gross oversimplification. Here, try this: Stop reading for a moment. Your habits aren’t just sight-dependent (obviously), they’re pretty weird. With a screen reader, there is no “looking”. Then, of course, there’s all that text. Think about that: The internet is anything but linear – website code is nested and cryptic, and often looks jumbled and out of order. Gadgets ‘n’ Apps
Color Contrast Checker You are here: Home > Resources > Color Contrast Checker <p><strong>This tool requires Javascript.</strong></p> Normal Text WCAG AA: Pass WCAG AAA: Pass The five boxing wizards jump quickly. Large Text Explanation Enter a foreground and background color in RGB hexadecimal format (e.g., #FD3 or #F7DA39) or choose a color using the color picker. WCAG 2.0 level AA requires a contrast ratio of 4.5:1 for normal text and 3:1 for large text. RGBA Calculator RGB-to-Hex Conversion RGB-to-Hex Conversion Question: How do I convert RGB values of a color to a hexadecimal string? Answer: The RGB-to-hexadecimal converter algorithm is simple: make sure that your values are in the range 0...255, convert R, G, B to hex strings, and then concatenate the three hex strings together. Convert RGB to Hex color values here: function rgbToHex(R,G,B) {return toHex(R)+toHex(G)+toHex(B)} function toHex(n) { n = parseInt(n,10); if (isNaN(n)) return "00"; n = Math.max(0,Math.min(n,255)); return "0123456789ABCDEF".charAt((n-n%16)/16) + "0123456789ABCDEF".charAt(n%16); } Notes: The script parses the input R, G, B values as integers using the standard function parseInt(string,10); the second, optional argument 10 specifies that the value must be parsed as a decimal number. RGB/hex codes for named colors supported in most browsers are listed below: See also:
Ocawa validateur Coblis — Color Blindness Simulator If you are not suffering from a color vision deficiency it is very hard to imagine how it looks like to be colorblind. The Color BLIndness Simulator can close this gap for you. Just play around with it and get a feeling of how it is to have a color vision handicap. As all the calculations are made on your local machine, no images are uploaded to the server. So go ahead, choose an image through the upload functionality or just drag and drop your image in the center of our Color BLIndness Simulator. If there are any issues with the Color BLIndness Simulator please send a note through the contact page. As it is not not so easy to describe color blindness it comes in handy, that some smart people developed manipulation-algorithms to fake any form of color vision deficiency. I would like to thank Michael from ColorJack for providing the color blindness matrix, which was used for the first version of the Color BLIndness Simulator.
Contrast Analyser & Accessibility About the Colour Contrast Analyser This native application (available for both Windows and Mac) allows you to evaluate the color visibility and contrast of foreground/background color combinations. It provides an initial pass/fail assessment against WCAG 2.0 color contrast success criteria. In addition, the Colour Contrast Analyser provides functionality to simulate certain visual conditions such as dichromatic color blindness (protanopia, deuteranopia, tritanopia) and cataracts. Note: the image simulation features are currently not available in the Mac version. Details The Color Contrast Analyser was developed to facilitate the assessment of color combinations against WCAG 2.0: The Colour Contrast Analyser uses the following formula to determine contrast: where R, G and B are defined as: and RsRGB, GsRGB, and BsRGB are defined as: RsRGB = R8bit/255GsRGB = G8bit/255BsRGB = B8bit/255 Versions Windows Mac Acknowledgements Terms of use The Colour Contrast Analyser is freeware.
ColorSchemer Browse Schemes Sort: Date|Rating|Downloads Showing schemes 1-10 of 6,152 2,777 Downloads+aqua By: ibrahimefouad 0 Comments 2,219 Downloads+Arad-khaki By: waiting313 17 Comments Arad Khaki Related: Arad ejama khaki gold darkkhaki 1,987 Downloads+Triads2 12 Comments Triads Colors nexcource darmanyar poopak 1,970 Downloads+pvnk By: eepukettula 26 Comments 2,165 Downloads+birthday By: roppongi 52 Comments 3,206 Downloads+Flat UI Colors By: Love Bdsobuj 24 Comments Flat UI Colors Schemes... flat ui color schemes 3,062 Downloads+bootstrap-color-schemes 155 Comments Most usages bootstrap colors... bootstrap 1,969 Downloads+Sunset Wedding 2 By: twinklevango 37 Comments A beach wedding sunset. 1,793 Downloads+Sunset Wedding 72 Comments Some random colors I like. 2,589 Downloads+google-material-color By: ngkhanhlinh 24 Comments 12 3 4 5 6 7 8 9 | Next » mySchemes Account Login or create an account to upload and manage your color schemes!
htm2pdf | convert your html to pdfs W3C comprendre WCAG 2.0 Résumé Ce document, « Comprendre les WCAG 2.0 » est un guide essentiel à la compréhension et l'utilisation de la version 2.0 des Règles pour l'accessibilité des contenus Web (WCAG) (en anglais) [WCAG20] et fait partie d'un ensemble de documents les accompagnant. Notez que le contenu de ce document est de nature informative (il fournit des orientations) et non de nature normative (il n'établit pas d'exigences de conformité aux WCAG 2.0). Consulter la Présentation des Règles pour l'accessibilité des contenus Web (WCAG) (en anglais) pour une introduction aux WCAG, aux documents techniques d'accompagnement et au matériel éducatif. Les WCAG 2.0 établissent un ensemble de critères de succès visant à définir la conformité aux règles des WCAG 2.0. Ce document présente des techniques précises pour satisfaire à chaque critère de succès.
Colorblind Web Page Filter