Colorcube - Turn pieces and blend colors in this minimal puzzler
Color Palette Generator - Enter the URL of an image and find its color palette
Rubek - Rubek is a Single-player and Puzzle video game that is brought to you by Xigma Games.
Klart.io Colors - A data-driven collection of beautiful color palettes 🌈
Speedcube - A simple and elegant Rubik's cube solve timer
Picular - Google, but for colors.