Triadic color scheme: Theory, examples, and applications - LogRocket Blog
Briefly

Colors are crucial in UX design, impacting users' perception of a website's quality instantly. Harmonious color schemes can signal high quality, while discordant ones may convey low quality.
Choosing colors that are opposite on the color wheel can create harmony in the design, implying a sophisticated and well-thought-out website theme.
Read at LogRocket Blog
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