I love to use art apps to record color sketches quickly, whether sitting by a lovely scene or whipping by in the passenger seat of a car. Photos just don’t ‘cut it’ for this type of use. The camera does not capture colors accurately — at least without time-consuming gyrations. Hauling out paints and nailing the right color note on the fly is also improbable.

With an art app, all you have to do is select the right color from a comprehensive array at your fingertips. Here are several palettes from which I can dial the desired color, swipe it on the screen, and adjust intensity/opacity as desired. The slideshow also includes a few color notations made to capture relative colors, instead of a specific scene.