Colours Systems Introduction

Posted in Uncategorized on Sep 19, 2014

Among of all colours systems that occur frequently in the world of design, there are two very famous colours systems, the first is called RGB and the other is called CMYK.
I like to take the opportunity to talk about them in a simple form to understood them better.

As a designer, it is essential to know when to use CMYK (cyan, magenta, yellow, and black), and when to use RGB (red, green, blue) colours on your design projects. A good summary to this article is that anything dealing with the web should always be in RGB and printed material should be in CMYK. But very few designers and clients know why this is the standard.

RGB System

RGB stands for the letters in the following colours: Red – Green – Blue, a group of colours that we see clearly in the form of boxes if we use a magnifying glass in front of the TV screen as an example.
When mixing the three colours above, they produce different colours to the sum of 16 million colours, as we gradually use grades of these colours to the maximum of 255 points for each, and when we reach 255 × 255 × 255 that means we got the highest number of colours offered by this system.
This colours system is used in the display of light, which means that we always need light to show them, such as on computer monitors, TV screens, large displays and even mobile devices.
For this reason, we use this system when working on designs to be presented on screens, such as Web sites and videos … etc.
In the following image, you can clearly see separate and mixed forms of these colours.

CMYK System

The four letters in the name refer to: Cyan (Natural Blue), Magenta (Natural Red), Yellow and Black.
As we all know that the primary colours are yellow, red and blue.
These are the colours that we see when using a magnifying glass over any printed material, or we can easily notice on old printing techniques such as newspaper.
The first three colours (Cyan, Magenta and Yellow) will mix to form all printable colours and with the help of Black shading you will get any printed material as shown in the following pictures:full

there is a ration for each colour of these colours from 0% to 100%.
This system is used in printing to a large degree, either on your home printer or on large printing projects such as brochures.
The following imag will show separate colours, and what happens when we mix them:

This post is also available in: Arabic

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