Color Schemer

http://www.colorschemer.com/online.html
This software is not free, but the online edition is free to access.
一个在线配色软件。

hippocolor - 一个简单的颜色选择工具

功能只有一个，就是在六边形的调色板上选择某种组合的颜色。
http://hippolulu.blogspot.com

Color Calculator 颜色计算器

这个软件是一个专业设计学校开发的用于选择颜色搭配的软件。
使用 Flash编制，有网络版本 http://dev.sessions.edu/ilu/ilu_1.html
离线版本在这里：http://www.sessions.edu/career_center/design_tools/color_calculator/index.asp
官方网站的介绍如下：

The Sessions Color Calculator is an interactive color wheel that helps designers select HTML, RGB, or CMYK colors and identifies color harmonies and schemes. Our Color Wheel works faster than any other color wheel or html color chart.

Designers may save HTML safe color values, CMYK color schemes, or RGB colors to an integrated clipboard and email the colors to colleagues or clients. You can also rotate shapes on the color wheel to identify harmonious color schemes, adjust the saturation and lightness of colors, or select a color plan to use for a corporate identity or design project.

Colors may be selected and applied to both print and Web design – the Sessions color wheel color calculator saves hours of work. A color scheme can be further refined by choosing different designs or patterns with different complexity levels.

For a thorough examination of Color, its systems, interactions and how to advantageously use this knowledge in art and design, please see Color Theory.

ColorPic

通过鼠标和快捷键进行屏幕颜色选取，还可以在调色板上选取颜色，得到颜色的RGB编号等等。
特别是可以选取多种颜色，并保存为一个颜色组合。
详情请看官方网站：
http://iconico.com/colorpic/
下载连接http://iconico.com/colorpic/download.aspx

官方网站上的介绍：

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Easily pick any color from the screen

Totally 100% Free!

No popup adverts or spyware, it really is free

Colors shown in hex and decimal

Adjust Hue, Saturation, Value, Red, Green and Blue values

Cyan, Magenta, Yellow and Black percentages shown

Easy to use with any other program

Resizable magnification area

Overlay a grid for quick colorpicker alignment

Use arrow keys to nudge mouse pointer

Save multiple palettes of colors automatically

WebSafe Colors and names displayed

Snap to nearest WebSafe color

Point sample, 3x3 or 5x5 pixel color sampling

Adjust color with four advanced color mixers

Edit colorpicker values after selection easily

Easy to use collapsible sections

Works with Firefox, Internet Explorer, Photoshop and any other application

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