Colora, gpick, Color Grab, Instant Eyedropper, DigitalColor Meter, Color Cop, gcolor2, ColorSlurp, ColorSync Utility, ColorMania, Paletton, Color Hunt, Just Color Picker, Instant Color Picker, Colormind, Pixel Pick, iColors, Palette Ninja, delicolour, pkColorPicker, Pipette, Free Color Picker, ColorGrab, Visual Color Picker, MouseZoom, Color Selector, ColorPro, colortypist, ColorManager, ReadableColorGen, ColorMixer, Plastiliq PixelPicker, Pickard, ColorPad, LifeDropper are some alternatives to Realtime Colors.