When you take photos with your digital camera, you’d like what you shot in the real world to match up with what you
see on your monitor, which should match up with your prints, which should look like what you shot in the first place.
It seems pretty simple, but it doesn’t always work out very well.

Colour management is used to ensure reasonably predictable and consistent colour across devices (such as cameras,
scanners, monitors etc.) by reconciling the color differences between these devices.

Why are these devices different?
None of these devices can reproduce the full range of colour that our eyes can see. Each device works within a range
(gamut) of reproducible colours. And these gamuts are different for each device. An example would be the difference
you see between an image on your computer monitor and on Photographic paper. Your monitor transmits light while
the paper reflects light. So the colours on your monitor will usually be brighter and more saturated.

How do we get to consistent colour?

Let’s start with your Camera.
In your Camera settings, you may have a choice between Colour Profiles (look-up tables that describe the properties
of a color space). Profiles define the most saturated colors available in a color space. If you don't have a profile, the
Red, Green, and Blue values that make up a color don’t have a reference point. An object can be red, but we aren’t
sure which shade of red. Different Profiles define colour in different ways. For example, Adobe RGB and sRGB images
of a colour with the same numerical value (R = x, G = y, B = z) may look considerably different.