About colour theories, models, spaces and management systems
Colour theory, colour models, colour spaces, and colour management systems are integral to understanding, representing, and manipulating colour in various fields.
- A colour theory is a set of principles and concepts used to understand how colour works, how colours relate to each other, and how they are perceived or interpreted by the human eye. A colour theory allows us to predict in advance how colour behaves in practice.
- A colour model is a practical application of colour theory. In both industrial and design contexts a colour model is and mathematical representation or system for creating a full range of colours using a set of primary colours. Examples include the RGB (Red, Green, Blue) model for light-based colours and the CMY (Cyan, Magenta, Yellow) model for pigment-based colours. The choice of a colour model depends on the medium (light, paint, ink, etc.) and the application (canvas, monitor, printer, etc.).
- A colour space is a specific organization of colours derived from a colour model. It can be used to define a gamut or subset of colours that can then be successfully applied within a particular context or for a specific purpose. Examples of colour spaces used in digital design include sRGB and Adobe RGB within the RGB model, each of which encompasses a different range of colours.
Colour Management System
- These are systems or protocols designed to ensure consistent and accurate colour reproduction across different devices, media, and lighting conditions. They consider the specifications of the devices used to capture, edit, or display colour, as well as the lighting conditions in which colours are viewed.
In summary, a colour theory provides the underlying concepts, a colour model provides a framework to represent these concepts, a colour space defines a specific range of colours that can be generated within the parameters of the model, and a colour management system ensures consistency and accuracy in reproducing colours across different contexts and devices.