i. Color theory

• 16 Lessons in Color Theory
• Adam Polselli: 2004 & 2005 Color Forecast, a series that includes a wide range of design guides that include everything you need to help jump-start your new design project.
• An Introduction to Using Patterns
• Causes of Colors - Why are things colored? is another interesting tutorial related to color theory.
• Color, Contrast & Dimension in News Design
• Color Information in Yahoo! directory.
• Color In Motion is an animated and interactive experience of color communication and color symbolism
• ColorShade helps you create professional matching color schemes for your project. With just a few clicks you will have an attractive, harmonious color scheme. Other features include web preview, scrollbar preview, vector image preview and palette creator (Shareware)
• Color Theory and Color Charts provided by About.com.
• Color Theory: A brief tutorial: brief, illumintaing, well explained.
• Color Theory Articles provided by Devx.com
• Color Theory Overview & Tutorial: Color, Creativity, Code
• Color | XPLANE: color resources, collected by xplane.com.
• Colour Harmony: Secrets of Web Color Revealed
• Colour Symbolism
• Colour Theory
• Colours on the web - color theory and color matching
• Design Psychology on Stylegala
• handprint : color is a comprehensive tutorial about color vision, color in the world, colormaking attributes, color psychology, additive & subtractive color mixing, color models, color wheels etc.
• Lesson in color: the theory of colors, hue, saturation, the adjacent effect, harmony and color mixing

• Das Logodesign Portal - Logodesign einfach erkl�rt!

ii. Color tools

• 100 Random Colors - Need a Color? is primarily a random color generator that's intended to help designers to get out of the "creative block"
• Defence Mechanism > Color Toy is a free online tool designed to simplify the nightmare of color scheme selection. It looks complex, but after a few minutes you won't be able to live without it.
• Color Palette Generator: enter the URL of an image to get a color palette that matches the image. This is useful for coming up with a website color palette that matches a key image a client wants to work with.
• With the Sessions.edu Color Calculator you can identify color harmonies faster than with any color wheel or chart. Use it to select a color scheme for a corporate identity or design project. Rotate shapes on the color wheel to identify harmonious color schemes. Adjust saturation and lightness. Save RGB, CMYK, or HTML color values, then send them to a colleague or client.
• Color Vision: 1 in 12 people have some sort of color deficiency. When you're designing for the web, this means that 1 in 12 people might not be able to see your site. That's alot of people. This tool helps you simulate the appearance of our site's colors for people with different color visions.
• ColorWrite 1.1 is a free color chooser with an integrated CSS/HTML code generator. It allows you to define colors using RGB, HSV, CMY and CMYK, makes using web safe colors easy and now, with Version 1.1, ColorWrite takes the guess work out of combining colors. ColorWrite runs on Macs (OS X), Linux, Solaris and Windows systems.
• Easy RGB has a unique set of color tools such as Color Matching (Match your computer generated RGB values to color cards, paint lines, inks, fandecks and more... Find an industrial standard match for your computer colors. Transform "virtual" colors in "real world" references.), Color Harmonies (Search for colors complements to your RGB values. Create color harmonies, combinations and themes. From your main (or background) color select trim and accents tones.), Search a Tint (Search popular color collections for specific color codes or names. Once selected the desired color, find the closest match in competitors' fandecks and color cards, create harmonies or get chromatic data.), Color Calculator (Convert color data to different color spaces. RGB to CIEL*ab, CMY to XYZ and much more. Looking for color math or space conversion formulas?)
• Colour Contrast Check
• Color converter (RGB/CMYK/HSV)
• 4096 Color Wheel
• Eye Dropper Color Mixer is a freeware, desktop colour-grabbing utility, which picks the colour value from any pixel of the screen (RGB, HEX or CMYK).
• Jafar.com: Advanced Color Selector is a color selection tool that allows you to change both the colors and font characteristics and preview them before using.
• Chromatic Wheel: 12 color chromatic wheel similar to the theoretical chromatic circle. Find and simulate the harmony of your web interface.
• ColorBlender.com | Your free online color matching toolbox: calculates a 6-color matching palette (a "blend") automatically
• Color Mixers create mixed swatches of background color for your pages.
• Color Palette v1.2 and Color Palette Creator: just like Color Blender these tools produce shades of your color, mixed first with white and then with black.
• Color Palette Generator generates a color palette based on an uploaded image.
• Color schemer Online v.2
• ColorLab is a tool for choosing a color composition - also available as a plug-in for Adobe Photoshop, Gimp, Fireworks, Flash, Golive, Painter, PaintShop Pro, Homesite, Illustrator, ImageReady etc.
• Colormix is a useful tool for creating a perfect color compositon or readable and accessible web design.
• Color synthAxis is a free online tool designed to simplify the nightmare of color scheme selection. It looks complex, but after a few minutes you won't be able to live without it.
• ColorWhore is a directory of nice colors
• Colour Contrast Analyser
• ColourMod :: DHTML Color Picker/Selector
• Colour exploration tools and a colour resources list: check readbility when any colour is used with black and white in four foreground and background combinations; explore colours near a specific colour, where you get to define what 'near' means; mix varying amounts of all combinations of red, green and blue with a specific colour; finely-tune your colour choice by hue, saturation or lightness, or make instant sets of co-ordinated colours; Colour schemes and palette layouts.
• Colour Scheme Chooser
• Conversion from Pantone to RGB and Hex HTML: Metallic Colours, Pastel Colours, 2x Colours, Skin Tones
• Design and Colour Utilities: CSS Border Test, Colourway, Colourband, Colourband Text, Colour Increments, Internet Explorer Scrollbars, RGB Converter, DOCTYPEs
• efg's Palettes and Colors Lab Reports
• How To Select Perfectly Matching Color Combinations: an Overview
• Image photo editor online: Resize, change dimensions, scale, crop, add text, optimize, color correction, adjust brightness, contrast, grayscale, rotate, flip, mirror, add clipart, and set transparency online with no image editing software to download or install
• Infohound Color Schemer: click around within the shaded box to set the saturation and brightness, or within the rainbow to set the hue. Matching colors will be automatically chosen
• Kolur.com Color Inspiration is a simple way to browse color palettes. Designs displayed in the gallery go beyond the generic 3 colored dots, and attempt to portray the possibilities in palettes.
• Patterns in Interaction Design is an exhaustive design-resource with numerous examples, descriptions and useful references; Web Design patterns, GUI Design Patterns, Visual design etc.
• RedAlt v1.0 - there is a form at the bottom of this page that lets you choose any URL you want to extract colors from. The colors you see are from the site that referred you to this page.
• The Man In Blue | Technicolor
• This or this generator of color schemes and palettes helps to create good-looking and well balanced and harmonic web pages.
• Triadic Color Harmony by Inherent.com
• Triplecode Munsell Palette is another color-harmony-palette-tool which is based on how people perceive colors. At its core is a set of data from perceptual studies; the result is a data set which defines a perceptually uniform color space.
• Unsafe Colormatch enables you to create 24-bit color schemes online - beyond the so-called safe palette. (IE 5.5 or higher)
• Web Color Theory helps to select a matching palette and determine a matching color arrangement for your website.
• Web Color Visualizer makes it easier than ever to select the color of the font and the background color.
• Web Safe Colours Table and Diagram with rgb and hex values
• A unique catalog of color-tools-bookmarks certainly completes the incomplete list of color tools presented on this page.

• ColorMatch 5K German edition is an optimized german version of ColorMatch 5K

iii. Color Schemes and Palettes

• CSS Color Chart contains a neutral colors chart and a general-purpose color chart
• ColorCombos & Web Color Gallery: Combo Tester and Web Color Gallery allow web developers to see how different color combinations work together on the screen.
• color combinations is a list of harmonic colors, which includes over 200 entries.
• ColorMatch 5K helps to select a matching 6-color palette for your website.
• COLOURlovers is a place to view, rate and review some lovely colours & palettes. the idea is to create a place of color inspiration where a designer of any sort can see new and lovely colours... find out what colors are hot, what work well in other uses... and simply make some love with colour..
• Colr.org - "a site for playing with colors" contains 19655 colors and 6387 schemes.
• Color Shades: Colors and Lighter Hexadecimal Codes and Swatches
• Netcocktail :: Get Color
• Return of Design - Web Color Schemes: beautiful, harmonic web color schemes provided by Forty Media Corporation
• Patterns: pattern4u, Kaliber10000 | Patterns, Squidfingers | Patterns, Pattern-Bomb, The Inspiration Gallery.

iv. Fashion: Colors Selection

• Behr | Color Smart
• Benjamin Moore: Personal Color Viewer
• Dulux paint colour range & advice about choosing paint colours
• Color palettes and color schemes at Sherwin-Williams
• Pantone's top ten fashion colors for fall 2005
• PANTONE Universe - Fashion ColorView: Color Your Life and choose from nine, beautiful in-season palettes