I feel this would be more valuable if they explained how the colors evoke tone or emotion. They're curated so it stands to reason this type of thing has been considered before being put up.
I don't understand the infographics in the color detail. Any ideas?
Just intended to be examples of colors-in-use?
e.g. The pie chart is always the same.
Pretty sure it's just to show the colours in some context like you said. Logo colours, infographic colours..etc