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Software

Sketchpad

Sketchpad is a free application allowing you to create beautiful landscapes and images. Sketchpad includes a number of Drawing Tools -- including: Text, Shape, Spirograph, Brush, Calligraphy, Pencil, Paint-Bucket, and Stamp -- as well as a few generic Drawing Utilities, including: Marquee, Crop, Eraser, and Color-Picker.

Color Galaxy (beta)

Color Galaxy is a online color library visualizer. We’ve amassed a collection of 27 color databases. Everything from Crayola’s historical set of standard crayons, to Munsell’s scientific renotational data. Huge collection of named colors!

Color Sphere

Our most popular application, in essence, the sphere allows you to visualize color theory :) Sphere supports eighteen formulas and nine color blindness simulations designed to help you choose the right color scheme for your project!

Color Sphere (widget)

Based on the ever popular Sphere application, the Sphere Widget has all the same functionality easily accessible right on your dashboard :)
Open Source

DHTML Color Picker : v2.0

This color picker allows you to create colors with fine detail. You can actually see the changes in <canvas> as you adjust the Hue, Saturation, Value along with the Red, Green, and Blue values.

DHTML Color Picker : v1.0.4

This color picker is full featured, however, uses the least amount of Javascript when compared to it’s competitors; only 24k including images… 3.5k for the uncompressed Javascript!

DHTML Color Sphere : v1.0.2

Cool remix of the standard color picker featuring a snazy sphere form factor. This time around you can resize the color picker in order to increase precision.

Color Matrix Library : v1.0

With this library you can apply ColorMatrix’s on colors in pure Javascript. This library supports large portion of the most common color functions available, including: Hue, Saturation, Brightness, Contrast, Exposure, Temperature, Tint, Channels, Blind, Colorize, Threshold, and Invert.

Color Blindness Library : v1.0

This is an optimized version of the color blind simulation function by Matthew Wickline. With these formulas you can convert a base color into nine types of color blindness’s.

Color Conversions Library : v1.1

Formulas used to convert to and from various color formats. Supports hex, hsv, rgb, and cmyk. Also includes a function to convert a 24-bit color into it’s websmart or websafe varient.