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why is hue circular?

Everyone is familiar with the colour spectrum. If you pass white sunlight through a prism then it splits into the component wavelengths. The shorter wavelengths appear blue, the longer wavelengths...

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Colour ownership?

Can you own a colour? The answer is almost certainly not. However, the law on colour use in branding and marketing is complex and there have been several high profile cases of companies slugging it out...

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the colour purple

Much was made in the media this week about the front bench of the labour party (UK) all wearing purple during the announcement of the budget. However, remarkable though it was, it is not a totally new...

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why are leaves green?

Why are leaves green? The most obvious answer is that they contain green pigments, the most abundant being chlorophyll and that chlorophyll absorbs the short and long wavelengths in the visible...

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New Yahoo logo

Yahoo launched a new logo this year. I was interested that according to this website Yahoo chief marketing officer Kathy Savitt described the purple as whimsical saying “We wanted a logo that stayed...

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Cadbury lose purple case

I have written a few times about various legal cases that are on-going to settle disputes about colour ownerships. For example, about 18 months ago I wrote about trademarking colour and the dispute...

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