Colorsinspo, Adobe Color CC, Happy Hues, TinEye Color extraction, Colllor, SwatchBooker, Pictaculous, Colormind, Color Palette from Image, Color Thief, Palette Ninja, Color Grabber, Colordrop, stylize.io, ColorWiki, Clr.yt, Colorwheely, Color hexa, CopyPalette, sK1 Color Picker, Culrs, Swatcher, Colorius, Palet.ly, iWantHue, ImageHues, ColoRotate are some alternatives to ColorExplorer.