HSV Camera (Get the color.)

What is this color? 　You can take a picture with the "Information of Color". 　. Information of Color is two types of "RGB" and "HSV". When is it useful? You want to know the color of this flower. You want to know the color of this sky. You want to know the color of this sea. You want to know the color of this bird. You want to know the color of this dress.