Colour Nodes - RGB vs CMYK

Question 1

What are colour modes?

Answer 1

Define how colours are represented and stored in a digital image. They determine range of colours, how they mix and how the file will look on screen, in print or on different devices.

Question 2

RGB

Answer 2

Stands for Red, green and blue

All screens can only display RGB

quality not as good, smaller file size

Question 3

CMYK

Answer 3

Print media uses this
Better quality larger file size
Stands for cyan, magenta, yellow and key (black)

Question 4

CMYK in more detail

Answer 4

The image is composed of four seperate colour channels, each representing one of the four colours in the CMYK model

The image is then printed using a four colour printing process, where each of the colours is printed separately on the printing surface

Colours are printed in layers

Used in printing, publishing and advertising

Allows precise and accurate colour reproduction making it possible to produce high quality prints with consistent colour across multiple copies

Question 5

RGB in more detail

Answer 5

These colour channels combine to create the final image.

Each pixel in the image is assigned a value for each colour channel, which determines the intensity of each primary colour.

When an RGB image is displayed, each pixel is illuminated with red green blue light in varying intensities to create the desired colour

Combination of 3 primary colours can produce a wide range of colours

Used widely in various applications, digital photography, graphic design and web design

Allows more control over colour and allows for the creation of vibrant and visually appealing images

When printing they need to be converted to CMYK to ensure accurate colour reproduction