EM Spectrum
Violet Light (380 nm)
789.0 THz
Cosmic Octave Color
Violet
Outside visible light range — representative swatch #76778a
Octave-shifted: 11.5 kHz (-36 octaves)
EstablishedPhysical Measurement
Evidence Level
Established
Source Count
1
Last Reviewed
March 23, 2026
Directly measured, standardized, or well-supported in mainstream scientific or technical literature.
This entry documents a measurable or standardized frequency reference. The atlas is a research and practice guide, not a medical diagnostic instrument.
Review the evidence modelViolet light at the highest visible frequency (~380 nm). At the boundary with ultraviolet radiation.
Claim Type
Physical Measurement
Traditional Color
Violet
Cosmic Octave Color
Violet · representative swatch #76778a
Source
Optics
Sources
Optics and Physics References
4 atlas references
Used for visible-light wavelengths, electromagnetic ranges, and general physics conversions.
Optics, physics, and electromagnetic-spectrum references.
visible-lightem-spectrumcolorviolet