Have you ever wondered why Google's logo contains different colour combinations? Some say it has a logical and mathematical reasoning behind it whereas others say that it might just be out of randomness. Google revised its logo in 2015 with slight modifications from time to time since 1999. Let us look at the reasons why they probably chose two blue, two red and only one green and yellow colour. Breaking a regular colour pattern shows that Google doesn't follow the rules According to Ruth Kedar, there were a lot of different colour iterations. So they ended up with the primary colours, but instead of having the pattern go in order, they put a secondary colour on the L, which shows that Google doesn't follow the rules.

They used a different colour for each prime position and repeated it for a composite position

This might just sound bizarre, but there is a theory that colours are assigned to letters according to whether their positions represent a prime number or don't. Letters number 1, 2, 3 and 5 have a distinctive or "prime" colour assigned: blue, red, yellow and green. Letters number 4 and 6 (composite numbers) repeat colours in the same order that such colours were assigned in the first time: blue and then red.

They started with the primary colour pattern and ended with the RGB colour scale

When we are dealing with arts, the first three primary colours are blue, red, yellow which was followed by Google as well. But when developing software, however, the colour scale is RGB, which explains why the next 3 colours are red, green and blue.