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CMYK or Full Colour Process Explained
20 May 2009
 

CMYK or Full Colour Process Explained

 

CMYK or Full Colour Process Explained

20 May 2009

cmyk-rgb
What is CMYK or Process Color?

CMYK or Cyan, Magenta, Yellow and Black are used in the industry standard colour mixing techniques to achieve full colour printing of just about everything from A5 Leaflets and flyers, to full colour brochures and newspapers. Have you ever noticed on the back of a newspaper that there are several blocks of colour, these are used for registration of the four colours. When CMYK are mixed in the correct proportions they produce millions of colour possibilities. Sir Isaac Newton developed the technique over 300 years ago, using the CMYK which are directly opposite the RGB on a chart known as Newtons ‘Colour Circle’

Full colour printing presses use CMYK inks in a subtractive process to absorb light which is then reflected from the white of the paper or card underneath. In a very similar method to mixing paint like a child would do at school, i.e red & yellow mixed together make green, the ink used in varying density to create the desired result.  This technique is also known as Four Colour Process or Full Colour Process and has been with us for many years.

The range of colour that CMYK can produce is vast, but it has a limit as is not as wide a range as that of RGB. As a direct result of this bright colours with intense colour values such as Orange, Green, and Blue can sometimes appear to dull or sometime dirty, however red will appear almost the same with either process.

Most professional colour printing companies will be able to reproduce almost every colour imaginable, but for those specific colours which are not available in CMYK, then the printer will usually use a ‘SPOT’ colour.

What is RGB Color?

Scanner and digital cameras create images using combinations of just three colors: Red, Green and Blue (RGB). These are what is know as the primary colors of visible light and this how computers and televisions display the colour that we see. RGB colours will appear more vibrant as light is being ‘transmitted’ or being projected directly into the viewers eyes.

These 3 colours when combined with different amounts make up all of the monitor or TV pixels that you see.

Many computer software uses RGB as a default as desktop monitors display this colour themselves. Desktop printers and laser printers also use this 3 colour technique in order to simplify the output of a printed sheet.

RGB Must be Converted to CMYK Color in Order to Print

Images photographed using a digital camera are usually saved using RGB. These will need to be converted to CMKK before they can be printed using full colour process. Most image software is capable of doing this, however there can be some slight shift changes in the colour when it converts, these can easily be addressed by adjusting the contrast and brightness etc.

Colour charts can be used for converting rgb colours into CMYK, and PANTONE is the industry standard. Pantone supply various colour matching books in particular the Pantone Colour Bridge set, which have the RGB colours next to the CMYK equivalent making it easier to match them.

We here at Print-Print ant you to be pleased with your print job, so taking time to prepare your document prior to it being printed is very important, so please feel free to ask us for our advice on colour conversion.

Please call us if you need to discuss any artwork queries, either call us on 01952 850730

or Contact us , we are only too happy to help.





Get a feel for what we do!

Our FREE sample packs are full of great print ideas. They’ll give you a taste of what to expect when ordering your design and printing from us.

Request free sample pack

 

cmyk-rgb
What is CMYK or Process Color?

CMYK or Cyan, Magenta, Yellow and Black are used in the industry standard colour mixing techniques to achieve full colour printing of just about everything from A5 Leaflets and flyers, to full colour brochures and newspapers. Have you ever noticed on the back of a newspaper that there are several blocks of colour, these are used for registration of the four colours. When CMYK are mixed in the correct proportions they produce millions of colour possibilities. Sir Isaac Newton developed the technique over 300 years ago, using the CMYK which are directly opposite the RGB on a chart known as Newtons ‘Colour Circle’

Full colour printing presses use CMYK inks in a subtractive process to absorb light which is then reflected from the white of the paper or card underneath. In a very similar method to mixing paint like a child would do at school, i.e red & yellow mixed together make green, the ink used in varying density to create the desired result.  This technique is also known as Four Colour Process or Full Colour Process and has been with us for many years.

The range of colour that CMYK can produce is vast, but it has a limit as is not as wide a range as that of RGB. As a direct result of this bright colours with intense colour values such as Orange, Green, and Blue can sometimes appear to dull or sometime dirty, however red will appear almost the same with either process.

Most professional colour printing companies will be able to reproduce almost every colour imaginable, but for those specific colours which are not available in CMYK, then the printer will usually use a ‘SPOT’ colour.

What is RGB Color?

Scanner and digital cameras create images using combinations of just three colors: Red, Green and Blue (RGB). These are what is know as the primary colors of visible light and this how computers and televisions display the colour that we see. RGB colours will appear more vibrant as light is being ‘transmitted’ or being projected directly into the viewers eyes.

These 3 colours when combined with different amounts make up all of the monitor or TV pixels that you see.

Many computer software uses RGB as a default as desktop monitors display this colour themselves. Desktop printers and laser printers also use this 3 colour technique in order to simplify the output of a printed sheet.

RGB Must be Converted to CMYK Color in Order to Print

Images photographed using a digital camera are usually saved using RGB. These will need to be converted to CMKK before they can be printed using full colour process. Most image software is capable of doing this, however there can be some slight shift changes in the colour when it converts, these can easily be addressed by adjusting the contrast and brightness etc.

Colour charts can be used for converting rgb colours into CMYK, and PANTONE is the industry standard. Pantone supply various colour matching books in particular the Pantone Colour Bridge set, which have the RGB colours next to the CMYK equivalent making it easier to match them.

We here at Print-Print ant you to be pleased with your print job, so taking time to prepare your document prior to it being printed is very important, so please feel free to ask us for our advice on colour conversion.

Please call us if you need to discuss any artwork queries, either call us on 01952 850730

or Contact us , we are only too happy to help.





Get a feel for what we do!

Our FREE sample packs are full of great print ideas. They’ll give you a taste of what to expect when ordering your design and printing from us.

Request free sample pack