fromPsychology Today
17 hours agoWhat Is It About Purple?
Part of the answer comes from optics. Violet light has the shortest wavelength on the spectrum of visible light, right next to the unseen ultraviolet, which only our skin detects. With its short wavelength and high frequency, the color purple contains the highest energy of all visible light. Figuratively, we can think of purple as the border between the visible and the invisible.
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