Swatches - A fun and accurate color picker for the real world
Encycolorpedia - Providing hex color schemes, paint matching & search, color directory and color space conversions.
ColorSnapper - The missing color picker for Mac.
HTML CSS Color Picker - HTML CSS Color Picker is an online website that provides you an extravagant color scheme that can be shared anywhere else.
Sketch Palettes - Sketch plugin to save and load colors into the color picker
BeautyColorCode - BeautyColorCode is a reliable platform for getting your colors right, courtesy of the extensive color scheme library that is easy to share and download.