Combing all colours, what will we get? White, black or any other colours?

Ask a graphic designer, he will said black.

Ask an engineer, he will said white.

Quiz 1:

Paint the wings of the fan using primary colours (Red, Blue and Green).

One colour for each fan wing.

On the fan. As the fan spins, what colours will you see?

1. Multiple colours

2. White

3. Black


There are two types of colour mixing: Additive and Subtractive.  

Additive Mixing:

Three primary colours in additive mixing are red, green, and blue (RGB).

When three primary colours are combine, the result will be white.

Additive mixing is used in television and computer monitors.


Subtractive mixing

This is a physical colour mixing.

The primary colours are Cyan. Magenta and yellow

When all colours combine, the result will be black. (In fact, the combination is more to brown. We will try to explain more in our next blog.)

This 4 colours Cyan, Magenta, Yellow and Black are what we called the CMYK.


We choose the colours from the computer screen (RGB) but the print (CMYK) results may not be what we wanted.

We do have clients coming to us to ask us just print, for example, “red”. Well, there are different tones of red. Anyway, without CMYK specification, we can still help to advise them.

How do we know so much?  Because we not only have designers, we have engineers.

You won’t get another know-how printer in town. Call us now for your printing job.

Quiz 2:

Why does "K" stand for in CMYK? Was it black?

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