Modern color wheel for artists and designers with artists paint database, 3 dimensions - hue, chroma and lightness. Find right paint color from any images. Discover color gamut of image. Try out color schemes on test images.Also haspigment database.
Emoti Match is an interesting puzzle game for free. Click the two same color objects. If you find them with the same color and they are not separated more than three lines, when you click on them, they are erased simultaneously.
A professional color matching software to help designers achieve greater levels of color harmony. Working with the color4design can help you to instantly pick colors, explore color harmony and obtain color schemes.
A program to find prime numbers and pairs of primes, to decompose numbers into their prime constituents, to find all factors of any positive integer up to 2,147,483,645, and to plot Erdos-Kac and Palmen Color histograms.