Use your live camera feed to select any color on the screen. You can also load an image from your photo library and select a color from it.
Simple options are available for focus and exposure control. You can set the torch (or flashlight) to a specific luminance to get the correct color balance before you pick it.
You can freeze the live camera feed if needed, to get more precision when choosing your color.
With Family Sharing set up, up to six family members can use this app.