AirColor

The app allows you to associate the name of the color and get the hex code.
Using the camera you can touch different points on the screen to know the color that is located at that point or pause the camera to watch a frame more closely.
Otherwise you can manually select a color using the picker.
You can also share color with friends.
The names of the colors to rely Color Survey XKCD (https://xkcd.com/color/rgb/)