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The Colour Contrast Check Tool allows to specify a foreground and a background colour and determine if they provide enough of a contrast "when viewed by someone having color deficits or when viewed on a black and white screen"[W3C].

palette de couleurs d'une image en ligne

Welcome to ColourGrab! ColourGrab is about er.. colours! Type a URL of any online image below and our system will tell you the most used colours from that image

Type a URL of any online image below and our system will tell you the most used colours from that image, and as a result give you some inspirtation! 

creates colour schemes based on one basic colour

calculate the closest color in the 216 color web-safe palette to the hex colour that you specify.

Type a URL of any online image below and our system will tell you the most used colours from that image, and as a result give you some inspirtation!

Create colour palette for your home with Color Smart

Visualise the basics of colour

access by url for colour names or hex eg:  http://web.forret.com/tools/color.asp?rgb=D8CBE4 http://web.forret.com/tools/color.asp?name=Firebrick

TizzR Is The Personalized Web Space And Homepage Which Can Be Customized By Adding Your Favourite Websites , Search Engines , And Emails As Well As Choosing Your Favourite Colour Schemes And Social Networking Sites To Use From One Page In One Place.

Free color tools (or 'colour tools' in the UK) for webmasters and web designers: Websafe Color Picker Tool all web-safe colors (6×6x6 = 216 colors). Color Picker Tool 16×16x16 = 4096 colors. Make Websafe Colors convert any color to a web-safe color. Color Mixer Tool for mixing new colors. Create Colors by RGB Values mix color values to create new colors. Combine Colors Tool combine two colors into one. Color Matcher Tool find how well two colors match. Compare Colors Tool compare six color samples. Close Colors Tool find similiar colors to a chosen color. Opposite Color Tool complementary color tool. Random Color Tool eight random colors & their values. Text on Background Tool foreground text / background color combinations. More Good Color Stuff: Websafe Color Chart - web-safe color chart with color codes. About Web Colors - In-depth article about color on the web. Full Color Spectrum - Shows all colors.

let's you set all the colours

How does it work? A table is created which is filled with large numbers of 1x1 cells. Each cell has a background colour of the corresponding pixel in the image. That's all it is; just a massive grid of coloured table cells. View the source to see the details

wordle is a toy for generating "word clouds" from text that you provide. The clouds give greater prominence to words that appear more frequently in the source text. You can tweak your clouds with different fonts, layouts, and color schemes. The images you create with Wordle are yours to use however you like. You can print them out, or save them to the Wordle gallery to share with your friends.

Make your own tag clouds and embed them , funny, fancy and coloured

d - Error level analysis shows differing error levels throughout this image, strongly suggesting some form of digital manipulation. Areas to note are the lips and shirt, as well as the eyes. All are at significantly different error levels than their surroundings. Presumably, colours have been altered and areas brightened.

web post-its with colour and font-site options

ecoder is an open-source web-based code editor, with real-time colour syntax highlighting, which allows multiple documents to be edited directly online at the same time. mecoder made possible thanks to editarea javascript wizardy.requirementsecoder works with most standards compliant browsers which have javascript enabled. internet explorer 6 is not supported.

The Flicker Test checks images in a web page for flickering, rate of flickering and colour contrast. This particularly affects people with Photosensitive Epilepsy. A URI can be entered in an input field and a report is generated with detailed reports on each image.

It simulates three kinds of vision deficiencies: deuteranopia,protanopia and tritanopia.

Generate a visual representation of a website DOM. An coloured, animated tree-node graph unfolds showing the structure of a site, based on what HTML tags it uses. Quite a beautiful visualisation. See author's blog entry on the applet at: http://www.aharef.info/2006/05/websites_as_graphs.htm

Websites as graphs is an HTML DOM visualizer applet that represents HTML elements of a website in different colors. For example all hyperlinks are blue and it's animated! After entering a URL and punching "Show me the Graph" you can see the flower grow.