All about colours – Colour Contrast Check & Colour tools list

Colour Contrast Check – thinking about web accessibility & finding the right colors to use
Choosing the appropriate colors for a website is very important for readability. Always test the color contrast and color brightness between the foreground and background of all elements ensuring that the colors are viewable by people with visual impairments such as color blindness.

The Colour Contrast Check Tool from snnok.ca) 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].
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AccessColor – Online Tool for Colour Contrast
AccessColor will find the relevant colour combinations within your HTML and CSS documents rather than requiring you to find each value to input yourself in order to test the contrast between each colour combination.
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CheckMyColours – It is a tool for checking foreground and background color combinations of all DOM elements and determining if they provide sufficient contrast when viewed by someone having color deficits.
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Colorblind web page filter
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Use the colorblind colorlab to select safe colors earlier in the design process.
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Colour tools list for web designers
Finding the right colors to use (big thanks to Lunarpages blog that found time to put this list together)

ColorPilgrim
4096 Color Wheel ->
ColorExplorer ->
Color Combos ->
Color Scheme Generator 2 ->
Color Wizard Ver. 3.0 ->
colordb ->
Color Hunter ->
ColorSpire ->
Web 2.0 Colour Palette ->
Accessibility Color Wheel ->
Colorbe.com ->
Color Palette Generator ->
Kuler ->
Cymbolism ->
COLOURlovers ->
100 Random Colors ->
Color Tools ->
Color Blender ->
colr.org ->
Color Schemer ->