Logo’, like life and fine wines, develop over time. They adapt and change to the worlds current predicament like google changes its web page every day depending on what historically happened on said day. However important it is to adapt to the times it’s also important to keep a brand image. See below some examples of logo’s and how they have changed over the years.
See how simple the changes made to the google logo are. Moving the colour around to changing the font style from serif to a sans serif as this is more modern. Taken from – https://www.pnclogos.com/google-logos-throughout-history/Another example see how originally there was no colour usage to then adding colour in the 60’s. Also notice the wording as they created more of a well known brand not needing so many explanations e.g. famous bbq and hamburgers. To the famous M that we know today which needs no explanation. https://www.logaster.com/blog/25-famous-brands-logos/Most of the logos i have researched have only changes about 10 times over the last 100 years or so. However Pepsi have re branded their logo 16 times! Keeping the red colour throughout however i imagine the Pepsi-cola had some branding issues with coca-cola as the imagery font and colour are all near enough the same. So adding the blue in 1945 seemed like a good idea to establish themselves as a competitor to Coca-cola and then changing the font style to something more clear and readable while getting rid of the ‘cola’ wording differing from coca-cola. Taken from https://www.logaster.com/blog/25-famous-brands-logos/