Most colorful genus of Kingfishers

Nature Talk
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I’m working on a blog post on Kingfishers, and as kingfishers are really colourful creatures I was wondering what genus is the most colourful. The genus Actenoides seem very colourful, I would love to know your suggestions.

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Ceyx
https://www.inaturalist.org/observations?locale=ru&place_id=any&preferred_place_id=7161&taxon_id=2622&view=species

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hmm, paradise kingfishers are also very colourful, the Ceyx seems to have more variety.

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Or simply Alcedo species, like the Common Kingfisher.