When you need to select a color for an element using Adobe InDesign, you have to point your mouse to a small square at the relevant toolbar.

This square is not only too small, but also adjacent to a second square that changes the stroke color. This can be very annoying.

Here is an easier way to do the same. Press F6 to open the Color dialogue immediately. In this dialogue the color squares are larger and you can point and click with the mouse easily.

I don’t think you can have a shortcut to open the fill and stroke Color Picker dialogues immediately, but there is one to open the eyedropper, if you’d like to choose a color by clicking on some area of a photograph. This shortcut is just the “i” key.